New Delhi, June 1 -- The US wants my business, but not so much that it would make it easy for me to buy its most popular product. I have been willing to give away a portion of my savings to send my child to America as a customer of American college education. I am not a great admirer of college education anywhere. It is akin to a caste system designed to keep unlucky children out of some rooms forever. But I am an incurable admirer of the West, and of young people escaping India, even if only briefly. But now, America is too risky for foreign students.

Even if they gain admission somehow, find the money somehow, are granted a visa somehow, there is no guarantee their welcome will not be revoked. The US government has stated that it will ...