muslim world. the additional release of information or any type of photographic evidence is something that we have to take into account in terms of what the reaction might be to it. in 2006 when musab al zarqawi, al qaeda s leader in iraq was killed by u.s. forces, the bush administration released a photo the next day. was osama bin laden executed or killed in self-defense? yesterday, some u.s. officials said bin laden fought back as the s.e.a.l.s attacked. today they said he was unarmed but shot during a firefight and it was justified. he resisted. the u.s. personnel on the ground handled themselves with the utmost professionalism. reporter: another tough obama decision. what to do about pakistan and what looks like a double-cross. why osama bin laden could be so close to islamabad, really in plain sight. the pakistani government today denied shielding bin laden and warned the u.s. to back off. looking ahead, u.s. officials fear retaliation, and that means presid