The 2010 Baghdad church attack, which saw nearly 60 Christian worshippers slaughtered, is the tip of a decade-long iceberg. In 2003, Iraq's Christian population was at least one million. Today fewer than 400,000 remain-the result of an anti-Christian campaign that began with the U.S. occupation of Iraq, when countless Christian churches were bombed and countless Christians killed, including by crucifixion and beheading.

There you have it. Even a flaming atheist can recognize the difference between a religion of peace and one full of bloodlust. The Tsarnaevs are just the most recent example of the tragic bitter fruit produced by radical Islamists. To further Maher's point, consider and contrast the efforts of radical Islamists with those of radical Christians.

Metropolitans Boulos Yazigi and Mor Youhanna Ibrahim Kidnapped Outside Aleppo by OCP on April 23, 2013 (thanks to Maksim)

Armed men have kidnapped the Greek Orthodox Metropolitan of Aleppo and Iskanderun, Metropolitan Boulos Yazigi and the Syriac Orthodox Metropolitan of Aleppo, Metropolitan Youhanna Ibrahm near the city of Aleppo.

A while back, Ati News, which according to Iranian dissidents is linked to government security agencies, published a report which stated that home churches had been identified in "Islamic" cities such as Qom and Mashhad. Mashhad is a pilgrimage destination for Shiite faithful and is the birthplace of Iran's supreme leader Seyyed Ali Khamenei.