WeatherJinx,
''From the available evidence, it appears that his episode has everything to do with people skills and nothing whatever to do with air safety''.
Sorry old chap but total CR@P.
A terrorist is still a terrorist even when not holding a weapon.
Someone who shows the ability to cause trouble on the ground shows the ability to do so in the air where the options to deal with it become much more limited.
As has been said in other threads....
keep the problem on the ground, don't let it get onto the aircraft or into the air.
Cheers.