NEW YORK Pakistan would face unspecified 'severe consequences if locally-based militants succeeded in attacking the United States in future, Secretary of State Hillary Clinton warned in remarks made public on Saturday. In administering the stern warning, which came days after a Pakistani-American was charged with attempting to set off a bomb in New Yorks Times Square, the top American diplomat also asked Pakistan to 'do more in the war on terror even though she acknowledged that Islamabad had lately increased its cooperation with the US Weve made it very clear that if, heaven forbid, an attack like this that we can trace back to Pakistan were to have been successful, there would be very severe consequences, the top US diplomat said in an interview with CBS 60 Minutes news programme. Observers here were surprised by Clintons grim warning despite the fact that the White House, the Pentagon and her own State Department have been expressing satisfaction over the cooperation being extended by Pakistan, especially in investigating Shahzads case. The spokesmen of these major branches of US government have also been rebuffing Indian journalists attempts to portray Pakistan in bad light, defending Islamabads performance in combating terrorists. Clinton said in the interview, which will be telecast in full on Sunday (today), that Pakistans attitude toward fighting terrorists has changed remarkably. Weve gotten more cooperation and its been a real sea change in the commitment weve seen from the Pakistan Government. (But) We want more. We expect more, she said. Since the relationship with Pakistan turned around, the results are encouraging, she said. We also have a much better relationship, military to military, intelligence to intelligence, government to government than we had before, Clinton told CBS. I think that there was a double game going on in the previous years, where we got a lot of lip service but very little produced. Weve got a lot produced. We have seen the killing or capturing of a great number of the leadership of significant terrorist groups and were going to continue that. Defence Secretary Robert Gates said on Friday the United States was prepared to provide more assistance to Pakistan if it wanted it in the wake of the attempted Times Square bombing. The Pakistanis have been doing so much more than 18 months or two years ago any of us would have expected, Gates told reporters at Fort Leavenworth, Kansas. He referred to Pakistani Army offensives, dating to spring 2009, against Taliban extremists in areas near the Afghan border, including in South Waziristan. Gates said the Obama administration is sticking to its policy of offering to do as much training and other military activity inside Pakistan as the Pakistani government is willing to accept. Its their country, Gates said. They remain in the drivers seat, and they have their foot on the accelerator. The topic arose later during a question-and-answer session with army officers at the Command and General Staff College at Fort Leavenworth. Gates appeared to play down the chances of an expanded Pakistani crackdown on insurgents. He pointed to the strain on security forces already battling militants in tribal areas bordering Afghanistan. With their military operations in the west, theyve started to be pretty thinly stretched themselves, as well as taking a substantial number of casualties, Gates said. One officer asked Gates about anti-American sentiment among the religious elite in Pakistan. Gates said that extends more broadly to Pakistanis who recall that the US abandoned Afghanistan after the Soviets were driven out in 1989, as well as the US sanctions against Pakistan in the early 1990s. If you look at it from the Pakistanis standpoint, there is some justification for their concerns, Gates said. Their view is that in several successive instances the United States has turned its back on Pakistan. And the biggest question they have is, Once you are done in Afghanistan, are you going home again? Or will we have a long-term relationship? Gates said the US intends to have a long-term relationship with both Afghanistan and Pakistan, but the history of the US role in the region is being exploited by the extremists to raise doubts about the Obama administrations strategic goals and intentions. I have to say, regardless of the anti-American sentiment on the part of many Pakistan elite, what the Pakistani Army has done in the FATA area and South Waziristan ... has been tremendously helpful to us, he said. They are moving in a direction and they are taking action in places that I will tell you that 18 months or two years ago I would have thought impossible. And they are doing it because it is in their own interest.