Ackerman is alarmed:

Watch [this] before considering a NATO peacekeeping force in Libya: Moammar Gadhafi’s forces are leaving anti-personnel and anti-vehicular mines in eastern Libya after vacating rebel-held areas.

... Congratulations, Col. Gadhafi: you’re now in the company of the Burmese junta, the only other regime known to lay landmines after the 1997 Mine Ban Treaty was signed in Ottawa. The U.S. isn’t a signatory, and some of its Tomahawk missiles carry cluster munitions, another weapons system that risks leaving unexploded ordnance behind for civilians to discover. But the U.S. doesn’t actively use those weapons against its own people.