They have established certain terrorist organizations for killing people... It was the Americans who first established these extremist, murderous and takfiri groups (like alqaeda and ISIS). Of course, in the present time, this bullet which the Americans fired has ricocheted and has hit themselves. The government of America is such a government.
Ayatollah Khamenei, Feb 17, 2014
In the present time, a number of regional countries are supporting the crimes of takfiri groups in Syria with their assistance. But in the not too distant future, these groups will be the ruin of the countries which are supporting them and in the end, they will have to destroy them by paying a high price.
Ayatollah Khamenei, June 02, 2014