I do support this...I also support anyone who commands a nuclear weapons system (eg: president obama) does the same thing along with random drug testing.
Along with every surgeon just prior to performing surgery.
Every bus driver before they get on a bus.
Every train engineer just before they get into the engine cab.
Every ship captain before they get on the bridge.
Every truck driver before they can get into the truck.
Every police officer before they report for duty.
Etc.