Watch this CNN video (thanks to F.) of an interview with a jihadist cleric, a convert to Islam, in Britain. Note that the voiceovers, without presenting any evidence, tell us that his views would be repugnant to the vast majority of Muslims, and say that he "tries" to justify violence by invoking the Qur'an -- with the clear implication, again without any evidence, that the Qur'an doesn't actually teach what Abu Abdullah says it teaches. Whoever put this video together is dogmatically convinced that Islam is a religion of peace, and no amount of evidence to the contrary is going to change his mind.
Why does this matter? Because it's false. And false analysis cannot lead to correct policy. The West's misapprehensions about Islam have led it to a number of blunders already. No doubt there will be many more.
Anyway, note also Abu Abdullah's complete identification with Muslims as "my people," despite his so obvious Englishness. His Islam has entirely effaced his ties to his family, his country, and his heritage.