what did pakistan know and did pakistan help bin laden hide? those questions are shedding light on the relationship between the united states and pakistan. fox 4's brandon todd joins us from our fort worth newsroom with some insight. >> right. the relationship between pakistan and the united states is a sticky one. there are drawbacks and benefits, good times and bad. any expert will tell you this is one of those bad times. >> what do you do with pakistan? >> it's the $1.3 billion question. that's how much money the u.s. gives to pakistan for help in the war on terror. and after osama bin laden was found there, had lived there for possibly six years, and was finally killed there this weekend, some lawmakers say it may be time to cut that aid to pakistan. >> they are either incompetent or x-rcomplacent about the location of osama bin laden. it's like having john dillinger live next door to the fbi for five years and they not know. how can that be? >> republican congressman ted poe has written legislation to freeze the money until islamabad can back up its claims that officials had no knowledge bin laden was there. a middle east politics professor at the university of texas says the relationship between the u.s. and pakistan just got a lot more complex. >> the fact that he's there and the operation was carried out is not as major an event because there's been these other thorns in the relationship. >> like the taliban, a weak border with afghanistan and lack of pakistani cooperation. he echoes what others have said. pakistan, problems and all, must remain a u.s. ally, especially with their nuclear capabilities. >> you want to keep a tight grip on those weapons. the pakistanis promise they make sure they don't fall into the hands of the bad people. but if the united states backed off completely and said do whatever you want, there would be no leverage for the united states over them. >> he added the u.s. will likely continue the course of trying to build up the relationship with pakistan, all the while letting pakistan know if the u.s. needs to protect its own interests without permission from pakistan, it will. from our fort worth newsroom, brandon todd, fox 4 news. >>>