On the other subject, of course there is such a thing as "Radical Islam"....We have all seen it at work, putting people in cages and filming them being burned alive, subjugating women and young girls, beheading people of other faiths and murdering homosexuals.
Of course the mass of Muslims do not support them, but given the freedom to gain a degree of power and wealth, their ideology will be enforced.
Islamic Fundamentalism is a huge danger to the world and Mr Obama should have recognised that in his speech.