Bloomberg: Disney CEO Bob Iger knew early on that Steve Jobs’s cancer had returned and kept it a secret for three years before it became public knowledge, a new biography of Apple’s late CEO reveals. Iger learned about the illness less than an hour before Disney announced its 2006 agreement to buy Pixar, the computer-animation studio run by Jobs, according to “Becoming Steve Jobs” by Brent Schlender and Rick Tetzeli. The $7 billion deal made Jobs Disney’s largest shareholder and put him on the entertainment company’s board.