In an abrupt turnaround, the United States last week "home delivered" a visa to Goverdhan Mehta, former director of the Indian Institute of Science in Bangalore, after holding up his application and questioning him about the potential use of his research in chemical weapons. ... [The] ambassador to India, David C. Mulford, "called Professor Mehta … to notify him and express both his apologies and satisfaction that a visa would be issued immediately."
Mehta says, "I appreciate the apology extended by the U.S. ambassador." But he remains concerned: Scientists must be able to participate "in international activities without being subject to any such restriction or humiliation."
From this news report in the journal Science.