May 11, 2010 6:54 am Twitter Attack: “The Day Twitter Exploded” Twitter.com catches software bug that let any twitterer force other twitterers to follow them. US & World Videos 2:38 Why USC wants foreign students to return to campus by Jan. 13 6:59 Is compounded weight loss drug for you? 2:30 Israel says it has launched retaliatory attacks in Iran 2:36 Murder gets 12 years in prison for burning woman in North Hollywood 2:38 These are the closest finishes of the Paris Olympics