Downs Gas News Today

>> we can play alerts over the speakers, directions to employees, we can shut downs gas lines, we can open garage doors so they dont get stuck shot, so fire trucks can get out, ambulances can get out, utilities can get out. >> reporter: a couple seconds may not sound like a lot of time, john, but the government experts say that could be the difference between life and death. >> wow. cool technology. will carr in los angeles, thanks. have you ever wondered what would happen if you gave a homele...