One of the more fascinating aspects of last night's manhunt for Boston bombing suspect Dzhokhar Tsarnaev was the special infrared camera the Massachusetts State Police used to pinpoint where Tsarnaev was hiding.
The camera was mounted on a helicopter flying above the boat owned by Watertown resident David Henneberry. Sensors picked up on the heat emanating from Tsarnaev's body, and officers were able to confirm where he was located. Officers also used a robot arm to remove the tarp covering Henneberry's boat.
