Sept. 2 (UPI) -- Britain began warning overseas students they risked being deported if they overstayed in response to what the government claimed was an "alarming" surge in asylum claims from people who entered the country on student visas. Ten thousand international students with visas that are about to run out have received texts and emails from the Home Office as part of an initiative to tackle the problem of people using the higher education system as a means of migrating to the United