Sars might be a worldwide threat but all the jokes about it - at least on The Tonight Show With Jay Leno - are about China and Hong Kong. Here are some Leno soundbites. 'To give you an idea how scary the Sars epidemic is, today France surrendered to China.' 'The University of California, Berkeley, is not gonna allow students from China or any other Asian country affected by the Sars virus to enrol for the summer session. See, this is wrong. This is not good. If we start banning Asian students from our schools, who are the American kids gonna cheat off?'