Obama: 'We underestimated the threat posed by Islamic State'
President Barack Obama has acknowledged that US intelligence agencies underestimated the threat from Islamic State militants and overestimated the ability and will of Iraq's army to fight.
The president described the US intelligence assessments in response to a question during a CBS "60 Minutes" interview that was airing tonight. He was asked about how Islamic State fighters had come to control so much territory in Syria and Iraq and whether it was a surprise to him.
He said that during the Iraq war, US military forces with the help of Iraq's Sunni tribes were able to quash al Qaida fighters, who went "back underground".
"During the chaos of the Syrian civil war, where essentially you have huge swathes of the country that are completely ungoverned, they were able to reconstitute themselves and take advantage of that chaos," Mr Obama said.
He noted that his director of national intelligence, James Clapper, has acknowledged that the US "underestimated what had been taking place in Syria." Mr Obama also said it was "absolutely true" that the US overestimated the ability and will of the Iraqi army.
The Obama administration has cited its intelligence weaknesses before.
At an August news conference, MR Obama said "there is no doubt" that the Islamic State group's advance "has been more rapid than the intelligence estimates" suggested it would be.
US intelligence agencies, he said, did not have "a full appreciation of the degree to which the Iraqi security forces, when they're far away from Baghdad, did not have the incentive or the capacity to hold ground against an aggressive adversary".
At an intelligence conference this month, National Security Agency Director Mike Rogers expressed regret that his agency had not been "a little stronger" in tracking the Islamic State's shift "from an insurgency to an organization that was now focused on holding ground, territory, the mechanism of governance".
Mr Obama called Syria ground zero for jihadis around the world, and said military force was necessary to shrink their capacity, cut off financing and eliminate the flow of foreign fighters.
Questioning Mr Obama's strategy to destroy IS, House Speaker John Boehner said the US may have "no choice" but to send in American troops if the mix of US-led airstrikes and a ground campaign reliant on Iraqi forces, Kurdish fighters and soon-to-be trained Syrian rebels fails to achieve that goal.
Mr Boehner, in an interview broadcast today, did agree with the White House that Mr Obama had the power to order airstrikes in Iraq and Syria, but said he believes Congress should consider a resolution authorising the use of force for this specific mission.
He said he would bring lawmakers back to Washington - they are not set to return until after the November 4 election - if Mr Obama were to seek such a resolution.