So we know that moving to the USA is sufficient to cause a dramatic change in your microbiome, probably not for the better. 因此我们得出结论，移居到美国生活后，会造成体内微生物群发生巨大改变，很可能不是在变好。 Are these microbes actually caus

Wall Street Reform & Main Street The President explains how Wall Street Reform will not only end bailouts and bring accountability for big banks, but empower consumers, shareholders and community

I’m speaking to you from the bridge of the aircraft carrier USS Carl Vinson in San Diego. This is one of the biggest ships in the Navy, and on Friday it was home to one of the most unique colleg

作为从小在朝鲜长大的孩子，Hyeonseo Lee（李炫秀/音译 ）认为她的国家是”世界上最好的"。她一直这样认为。直到90年代的大饥荒，她开始怀疑。14岁时，她逃出朝鲜并开始了在中国隐姓埋名的难民生活。 这是一个关于生存和希望，令人痛心的私人故事。同时也是对那些远在他乡，却仍然时刻生活在恐惧中的朝鲜人一个鲜明有力的提醒。 李炫秀Ted英语演讲：My escape from North Korea

Today, America faces a make-or-break moment for the middle class. After the worst economic crisis of our lifetimes, some still want to return to the same policies that got us into this mess. They&rsqu