Being a pilot is heavily gov’t regulated, with gov’t training, testing and licensing.
This is the liberal wet-dream for owning a firearm, is it not?
But it did not stop a mass murder by pilot and will not stop mass murder by firearm.
But, I expect to see more gov’t control and regulations proposed as a “solution” to the problem.
Will periodic govt. psych tests be mandatory for ALL transportation operators?
I suggest mandatory psych tests starting with:
Obama, ALL Democrats, ALL media talking heads, appointed czars of ALL federal agencies, and plenty more. The list would be endless.
Of course we know that Obama would start a list topped by ALL Conservatives. 
Yes,
Of course: more government. Clearly there's too much freedom, or this wouldn't have happened.
He was being diagnosed and treated extensively (a long period of time) for ‘clinical’ depression.
As I’ve said on the gun rampage threads, LOCK UP THE PSYCHOLOGICALLY DERANGED. Medication makes them pass for normal but they still are not functionally normal. If they cannot be held legally accountable for their actions then they require a legal guardian or chaperon at all times. Enough of putting them in positions of power.