investigation. chip reid has more from palm springs, california, where president obama has been meeting with the president of china. >> reporter: at a summit notable for its informality, president obama and chinese president xi jinping focused on a personal relationship to work cooperatively on a range of contentious issues. at the top of the u.s. agenda: cyber security, with president obama raising concerns about extensive chinese hacking of u.s. computer systems. >> which is why i believe we can work together on this, rather than at cross purposes. >> reporter: but working together could be difficult following a series of leaks this week to the british newspaper "the guardian" about u.s. cyber capabilities. friday, the paper reported on a secret directive by president obama to draw up an overseas target list for cyber attacks. while the existence of the directive was widely reported last year, someone has now leaked the actual document to "the guardian." a white house...