The Pentagon unveils a new heat-ray gun that is designed to make targets feel like they are about to catch fire. It’s main goal: pain. Does it violate international law, and could it be used for torture? Retired Marine Col. Gary Anderson says: “Why would I want to use an $8 million weapon [when I can use] a 25-cent pen knife?” Human Rights Watch military expert Marc Garlasco says the weapon raises major concerns. They joins us for a discussion. [includes rush transcript]