Stating this in an interview to a news channel, Bush said: "If another September 11 style attack is being planned, it probably is being plotted in Pakistan, and not Afghanistan." (Watch)
Bush said if the terrorists were planning such attacks, they would be routed out.
"We've got plenty of firepower to take on Al-Qaida cells in Afghanistan," he said, although more US and NATO troops are headed to Afghanistan.
He also said that Washington had no intention of attacking Iran, but added that it was the responsibility of the US to convince the world of Iran's capacity to enrich its uranium capacities for a potentially threatening nuclear weapons program.
It was, therefore, in the interest of Washington to pressurize the Iranians to prevent them from enriching their uranium haul.
"I have always said that all options need to be on the table," Bush said, adding however, that his government's priority was to solve the issue through diplomatic means.
He also agreed with Defense Secretary Robert Gates that there was no chance that the number of US troops in Iraq would shrink to 100,000 by year's end.