Experiments under way in several labs aim to create beneficial types of genetically modified foods, including starchier potatoes and caffeine-free coffee beans. Genetic engineers are even trying to transfer genes from a cold-winter fish to make a frost-resistant tomato.

    A low-sugar GM strawberry now in the works might one day allow people with health problems such as diabetes (糖尿病) to enjoy the little delicious red fruits again. GM beans and grains rich in protein(蛋白质) might help people at risk of developing kwashiorkor. Kwashiorkor, a disease caused by severe lack of protein, is common in parts of the world where there are severe food shortages.

    Commenting on GM foods, Jonathon Jones, a British researcher, said: "The future benefits will be enormous（巨大的）, and the best is yet to come". To some people, GM foods are no different from unmodified foods. "A tomato is a tomato," said Brian Sansoni, an American food manufacturer.

    Critics of GM foods challenge Sansoni's opinion. They worry about the harm that GM crops might do to people, other animals, and plants.

    In a recent lab study conducted at Cornell University, scientists tested pollen(花粉) made by BT corn, which makes up one-fourth of the U.S. corn crop. The scientist dropped the pollen onto milkweed, a plant that is the only known food source of a butterfly caterpillar(毛虫). Within four days of feeding on the leaves, almost half of a test group of caterpillars died. "This is a warning bell." said Cornell researcher Linda Raynor.

    Some insects that are not killed by GM foods might find themselves made stronger. How so? The insecticides are used on the crops to kill the pests. But GM plants produce a continuous level of insecticide. Insects relying on those crops may develop resistance to the plants and they may also develop a resistance to the insecticide.

    At the forum on GM food held last year in Canada. GM crops that have been made resistant to the herbicide might crossbreed with wild plants, creating "superweeds" that could take over whole fields.

    So where do you stand? Should GM food be banned in the United States, as they are in parts of Europe? Or do their benefits outweigh（胜过） any of the risks they might carry?

    With fuel costs rising and airlines finding more fees to impose on travelers every day, airfare isn't getting any cheaper. Since you can't drive to all your dream destinations, flying is the only way to go sometimes and, undeniably, the fastest. Luckily, there are plenty of ways to find the most affordable fares and also avoid paying as many extra charges as possible when you plan ahead.

    Getting the best fare. Airlines put out their fare sales on Tuesday morning, making this day the best day to book a flight for less.

    Fly during the least popular times. Tuesday, Wednesday and Saturday are the slowest days to fly, which means cheaper deals than the rest of the week. You can also find reduced rates on early morning flights, since many people don't like to get up before the sun to get to the airport. Earlier boarding times can also considerably cut down your chances of getting bumped on an overbooked flight or delayed because of other delayed flights or mechanical issues.

    Choose your seat later. Some airlines charge you to pick your seat when you book online, adding even more to the bottom line of your ticket cost. If you show up early on your travel day, you can still get suitable seats. Some of the best seats get held back until flight day, unless others are willing to pay extra for them ahead of time, so you still have the chance at one of those.

    Fly on holidays. You already know that summer is the most expensive time to fly, and even though most other times are more affordable, the days surrounding holidays can be crazy. Save big if you're willing to travel on major holidays, such as Thanksgiving and Christmas.

    Don't wait until the last-minute to book. Many travelers don't know that there's a sweet spot for booking and getting the best price on your tickets. Book too early or too late and you could end up paying more than you need to. The best time to book is between three months and six weeks from when you want to travel.

    Avoiding extra fees Airlines will charge for just about anything these days. Some have even toyed around with charging customers for using the restroom. All those extra fees can certainly add up, but there's no reason to pay them if you don't have to. Here are some tips to keep money in your wallet once you get to the airport.

    Avoid the upgrade it's not necessary. Sometimes upgrades are free, but mostly you will be charged for seeking a last-minute bump to first class, and the cost can be hefty.

    Fly carry-on only. Baggage fees vary wildly, but almost all airlines charge them and charge big. Why pay for your clothes to fly with you? If everyone in your travel party checks a bag, your bill can be astronomical before you ever even get to your destination. It's easy to reduce the amount of stuff you pack: Make sure all your clothing coordinates, so you can take less and still make more outfit combinations, take only two pair of shoes, plan to do a bit of laundry on your trip and bring only travel-sized toiletries.

    Pack your own snacks. Unless you're flying internationally, it's rare your flight comes with a free meal. Snacks on the plane are not cheap and almost never healthy. Don't rely on what's on the small menu and instead tuck some of your own snacks — granola bars, homemade muffins, fruit and trail mix all make fantastic travel foods — into your bag and eat a lot better, and cheaper, than other passengers.

    Do you have a tried and true method of getting the best deal on your flights? Let us know.

    Eight Days Best of China Tour

    This tour covers two ancient capital cities of China — Beijing & Xi'an, as well as the most developed city — Shanghai. It's not overstated to call it the most classic China tour, for China's past, present and future are epitomized（成为…的缩影）in the golden triangle cities for your exploration.

    Highlights of this tour:

    Be thrilled by the grand of Great Wall, as well as the delicacy and majesty of Forbidden City and Summer Palace in Beijing.

    Experience the World Heritage Site of Terracotta Warriors in Xi'an, the ancient capital city of China.

    Feel the charm and vitality of Shanghai, the most prosperous and modernized city in China.

    Our tour — at a glance

    Day 1-4 Arrival & Beijing Tour

Two full days and a half day sightseeing covering the grand Tiananmen Square, historical Forbidden City, spectacular Temple of Heaven, manmade wonder Great Wall of China, royal park Summer Palace and traditional Hutong.

    Day 5-6 Xi'an Tour & Flight to Shanghai

    One full day to visit the incredible Terracotta Warriors, leisurely walk on the Ancient City Wall and Muslim Quarter. Before leaving for Shanghai, explore the Big Wild Goose Pagoda and Shan'xi History Museum.

    Day 7-8 Shanghai Tour & Departure

    Experience the great contrast of Shanghai by visiting the traditional Yu Garden and Jade Buddha Temple, modern and prosperous Shanghai World Financial Center, Nanjing Road and the Bund, etc.

    Start planning your tailor-made holiday by contacting one of our specialists. Once enquired, you'll get a response within 0.5-23.5 hours.

Bayfield Shopping Coupons (赠券)

    It is every kid's worst nightmare(噩梦) and six-year-old Jaden Hayes has lived it twice. First he lost his dad when he was only at the age of four and then last month his mom died unexpectedly in her deep sleep.

    "I tried and I tried and I tried to get her awake, but... I just couldn't," said Jaden.

    No one could imagine how heartbroken Jaden was.

    But there's another side to his sadness. A side he first made public a few weeks ago when he told his aunt, Barbara DiCola, and now his guardian(监护人)after both his parents died, that he was sick and tired of seeing everyone sad all the time. And he had a plan to fix it.

    "And that was the beginning of it," said Barbara. "That's where the adventure began."

    Jaden asked his aunt Barbara to buy a bunch of little toys and bring him to downtown Savannah, Georgia near where he lives, so he could give them away to anyone who will smile to him. "I'm trying to make people smile," said Jaden.

    Jaden targets people who aren't already smiling and then turns their day around. He's gone out on four different occasions now and he is always successful. Even if sometimes he doesn't get exactly the reaction he was hoping for.

    It is just so overwhelming to some people that a six-year-old orphan would give away a toy -- expecting nothing in return -- except a smile.

    "I'm depending on it to be 33, 000," said Jaden. When asked if he thinks he can make that goal, he answered: "I think I can."

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