WASHINGTON - While US Secretary of State Hillary Clinton did say she has seen no evidence about the alleged involvement of Pakistans ISI in Osama bin Ladens presence in Abbottabad, it does not mean a clean chit to the spy agency, a State Department spokesman said. I dont think she [Clinton] gave them a free chit, Deputy State Department Spokesman Mark Toner told reporters while responding to a string of anti-Pakistan questions at the regular news briefing on Friday. We acknowledge that there are difficulties in the relationship, but the bottom line is that this is a relationship thats in our interest and in Pakistans interest, and so we need to work through these challenges moving forward, he added. Since the unilateral American operation that killed the Al-Qaeda leader, Indian correspondents have stepped up their attempts to depict Pakistan in bad light at official briefings here, pointing to ISIs alleged connections with terrorist groups, the Chicago trial and demanding aid cut-off. US spokesmen have been cautious in replying to hostile questions bombarded by Indian correspondents each day as they virtually dominate the briefing sessions. Toner also said that Clinton had a 'very frank, open discussion with Pakistani civilian and military leadership. The Secretary was clear to say that were at a pivotal moment in the relationship, certainly with the death of bin Laden, but there are other important aspects of the relationship that are in motion, said Toner. Weve been applying - next door in Afghanistan; weve been applying steady pressure on the Taliban. We want to see also, concurrent with that, the reconciliation - Afghan-led reconciliation process move forward. So theres clearly a lot on the table here. This is not a time for inaction at all. This is a time for greater action and consolidated effort, I think, is what the Secretary was trying to say, he added.