The United States on Friday said it wanted to ensure that the terror groups which carried out the Mumbai attacks are shut down as no citizens would be safe as long as these groups are tolerated. "We want to know who did it, how they did it. We want to make sure that groups who did it are shut down, put out of operation," US Assistant Secretary of State Richard Boucher, who is in India after visiting Pakistan, told reporters here. He said Pakistan "has suffered a lot from terror" but "it (Pakistan) is also a place from where these (terror) groups operate".
Boucher said Pakistan "needs to get rid of all terrorist groups". "You cannot have one group operating in Kashmir and another in Mumbai".
"It is legitimate to close down these places and that is what we want to ensure," Boucher said, when asked if India were to carry out surgical strikes against terror groups across the border.
"None of us, Including Pakistan, India and US, is safe as long as terror groups are tolerated," he said. The American official said Pakistan had made a 'promising start' in the fight against terror but there is a lot that still needs to be done.
On the steps taken by Pakistan after the Mumbai terror attack, Boucher said "it has put a lot of people in custody and acted against some organisations".
"We need to ensure that attacks like 26/11 don't recur," he said.
Boucher said India's response to the Mumbai attacks is one which the US would cooperate with and support. To a question if Pakistan's nuclear capability was a factor to be considered for India to formulate its response to the 26/11 strikes, Boucher said "I don't think that Pakistan having nuclear weapons is the most important factor". "You can rely on the United States," Boucher said when asked if the US would help get terrorists wanted by India from Pakistan.
Asked what would be the US response if Mumbai-like attacks were to take place there, Boucher said "we would react in a way we think is the most effective way to stop the terror attacks".
Asked if the probe into Mumbai terror attacks had yielded information about who was behind them, he said "it is too early to talk about investigative conclusions...It is premature to express any conclusions".
Stating that the probe into Mumbai attack was an Indian investigation and that the US personnel are in India primarily in a supportive role, Boucher said "it is a big