"I understand. I'll be heading out now but please make sure to inform me if you learn anything else." Duncan said as he shook the man's hand and escorted himself out. If he learned anything during forensics, it's that when test a sample you always leave a control group (which Duncan theorizes) that the people given the masks must be them. Seeing as the next important steps would be to get underground, he figured he best get some protection. He wanted to look around and see if anyone had left behind a gasmask anywhere carelessly.