in fact, obama has often spoken about the problems of extremism in islam. here he is in his 2014 speech to the u.n. general assembly which focused significantly on that topic. >> it is time for the world, especially in muslim communities, to explicitly, forcefully and consistently reject the ideology of organizations like al qaeda and isil. today it is violence within muslim communities that has become the source of so much human misery. >> in his speech after the san bernardino shootings, obama again made some of these points, leading the late night comics seth meyers to offer this quip. >> so he used the words radical islam in terrorism. he just didn't use them in the right order which would be a problem if it was a spell and he was harry potter, but he's not so it isn't. >> obama and clinton have chosen