I'm definitely not agree with you. improving grammar knowledge is not a big part of this summer program.it is enough to have English knowledge as level of intermediate. you can easily see that policy if u research something about wat. honestly it is not even a policy but the companies which organize wat adding this rule in to their poicies in order to feel themselves safe as financially. Cause there is a probability about can't getting visa for students.. It means many things for companies. Well, I have seen so many students who cannot even ask an adress.. But they have been in usa. all you need to do is having practice and vocabulary.. The all other things will come by itself and I still think that he can easily join wat 2010 as I realized from his sentences...