1.
Because those who hold conspiracy theories typically suffer from a crippled epistemology, in accordance with which it is rational to hold such theories, the best response consists in cognitive infiltration of extremist groups. Various policy dilemmas, such as the question whether it is better for government to rebut conspiracy theories or to ignore them, are explored in this light.
Cass Sunstein
2.
The current situation in Iraq is ultimately a crisis of governance, which has allowed extremist groups to take advantage of disillusioned segments of the Iraqi population.
Tim Kaine
3.
The gravest threat faced by the world is of an extremist group getting hold of nuclear weapons or materials.
Mohamed ElBaradei
4.
You know, terrorism in Afghanistan had everything to do with the support for the mujahidin by Saudi Arabia and by the CIA that sought to create an international religious extremist group to fight the Soviet Union.
Jill Stein
5.
Some Pakistanis fought for the Taliban. Pakistani extremist groups provided infrastructural support to Al Qaeda. There was a coming and going of Al Qaeda militants and leaders between Afghanistan and Pakistan for several years. All that has really happened is that Al Qaeda has escaped from Afghanistan come into Pakistan, got in touch with their contacts and friends in these extremist groups, which then provided them with safe houses, cars, and not just in the border areas but also in the cities. Rooting out Al Qaeda in Pakistan now is where the main battle is being fought.
Ahmed Rashid
6.
So there are two separate tracks. One track is for the Syrian government and the opposition that is interested in a peaceful future of Syria to come together for national unity, for the political process. At the same time, it is a requirement for everybody to stop supporting the extremist groups, to stop allowing them safe passage, to stop allowing them to receive weapons, to stop allowing them to receive financial assistance, and to come together in actually fighting them.
Mohammad Javad Zarif
7.
People have been fed misinformation. The fact is that the fighting that is going on on the ground in Syria is with Al Qaeda, with Jabhat al Nusra, with Daesh. The pockets, small pockets, of other groups are usually surrounded by these various extremist groups. . . . Once they stop fighting, there is nothing for the Syrian government to hit other than the terrorist organizations.
Mohammad Javad Zarif
8.
An aggressor nation or extremist group could gain control of critical switches and derail passenger trains, or trains loaded with lethal chemicals.
Leon Panetta
9.
The United States of America is engaged in a war against an extremist group of folks.
George W. Bush