Homeland Security To Test Biological Sensors In MBTA Tunnels

BOSTON (CBS) – The Department of Homeland Security (DHS) will be releasing bacteria into the MBTA tunnels to test the safety of the subway. The DHS has installed sensors in the MBTA system to detect biological agents and they’ve been testing to see how the air moves. Now they want to release particles in the tunnels to see how well the sensors work. The tests will be held at stations in Cambridge and Somerville. http://boston.cbslocal.com/2012/04/30/homeland-security-to-test-biological-sensors-in-mbta-tunnels/#.T5_tvsKLbYQ.facebook