Ken Griffin, founder and chief executive of Citadel, has criticised students at Harvard University. Photograph: Patrick T Fallon/AFP via Getty Images Ken Griffin is the latest hedge fund billionaire to put the boot into Harvard University, saying he won’t be donating until it stops producing students who are “whiny snowflakes” that are “caught up in the rhetoric of oppressor and oppressee”. Griffin, the most profitable hedge fund manager in history – his Citadel fund has generated $74 billion (€67.9 billion) for investors since 1990 – donated $300 million to Harvard last April, but recent tensions about anti-Semitism on campus and...