Over at the Newsweek blog, Declassified, Mark Hosenball explored the recent events at Fort Hood and the role the security-clearance procedures played or didn’t play.

According to Wayne Hall, a spokesman at Army HQ at the Pentagon, everyone who receives a commission as a U.S. Army officer has to undergo a security investigation, which qualifies him or her, at a minimum, to handle information classified secret…he said standard practice is that officers normally have to receive their secret clearance before they are formally commissioned, and that sometimes commissions are held up pending the successful conclusion of the security check.  At this point there is no reason to believe that Hasan had anything higher than the standard secret clearance required by all officers at his level.

The background investigation of the shooter will likely come under some scrutiny as the investigations proceed.