When White House adviser John Brennan recently accused President Obama's critics of aiding and abetting the enemy, I thought about shipping containers.

Brennan, who is deputy national security adviser for homeland security and counterterrorism, wrote in USA Today that critics of Obama's handling of the would-be Christmas Day bomber were "misrepresenting the facts to score political points, instead of coming together to keep us safe."

"Politics should never get in the way of national security," Brennan wrote. "Politically motivated criticism and unfounded fear-mongering only serve the goals of al-Qaeda."

Port security hasn't been in the news lately, so you could be forgiven for not seeing a connection between Brennan's incendiary charge...