Sorry you thought it was stupid. I did think before saying that. Of course the government has to react to these atrocious apalling abhorrent actions in the US. And I can understand the need to re-route flight paths over London and other major cities.
I suppose in the heat of the (terrible) moment the easiest thing is to ground everything except AOC / Police flights, but I can't really see that a Cessna 152 flying from, say, Inverness, creates a security risk. Especially since it was flights operating under the US equivalent of an AOC which were impressed into this terrible tragedy.
I think that if this were REALLY a national security decision, then we should hav either banned all flights in the UK FIRs, or none. I can't see how banning some of them enhances national security in the current context
[ 11 September 2001: Message edited by: dde0apb ]