Some very measured responses to an appalling incident.There really is no point venting frustration or anger anymore;not only should this maniac have been on a watchlist(Algerian and an asylum-seeker,what better reason for being on a watchlist?),he should have been escorted by an armed guard.
Perhaps you Euros can see why we want armed pilots/marshalls and why we divert/intercept a flight at the slightest whiff of suspicion.
I suppose that other maniac who had a gun on a Ryanair flight about two years ago is probably out of jail by now and enjoying benefits.