Pentagon locked down and partially evacuated due to a false alarm by hazardous materials sensor, sources say

CNN By Haley Britzky, Pamela Brown, Davis Winkie, Zachary Cohen, CNN (CNN) — The Pentagon was locked down and partially evacuated on Thursday due to a false alarm by a hazardous materials sensor, two sources familiar told CNN. Multiple floors and corridors inside the building had been locked down and others were evacuated due to