The US government has frozen more than $2.2bn (£1.67bn) in funding for Harvard University after it defied demands made by the Trump administration to curb protests on campus. The Ivy League university, in Cambridge, Massachusetts, has accused the federal government of trying "to control the Harvard community", including calling on the student body, academics and staff to be "audited" on their views about diversity. Harvard president Alan Garber has accused the administration of attempting to "reduce the power" of certain students, academics, and administrators targeted because of their ideological views. Some $7.2bn (£5.75bn) more in government funding is at risk....