A Cornerite e-mails:
I wanted to call your attention to the fact that the dead Boston bomber’s website contained links to Muslim end-time (Madhist) websites discussing the prophecies about the “Black Banners of Khorosan”. Charles Cameron at the Zenpundit blog has been writing specifically about Madhism and end-time prophecies as a factor in terrorism for years now, and is a very informative source. See for example this post (http://zenpundit.com/?p=3205) or just go to Zenpundit.com and do a search on “Black Banners”.
The fact that they are Madhists is probably more important than that they are Chechens.