BBC (June 2) -- There are more than a quarter of a million students from China in colleges in the United States--a third of all international students in the country--and almost a fivefold increase since 2000. ECE undergraduate Junfeng Guan has already overcome far bigger challenges since making the move from China to America's mid-west to the University of Illinois Urbana-Champaign. Illinois boasts the largest number of international students of any public higher education institution in the US, nearly 5,000 of whom are Chinese.