I'm in London.
My family is in the US, due to fly to the UK at the weekend.
This morning there is the highest level threat alert on UK/US flights - 'critical'.
The UK police say they've thwarted a specific attempt at 'mass murder' .
21 British Asian Muslims have been arrested overnight.
Neither the police nor the BBC say the word ' Muslim'.
Nearly a quarter of young British Asian Muslims polled say 7/7 was justified.
There's a long-term, consistent profile of terrorists against planes.
Everyone knows what that profile is.
Almost all security assets at UK and US airports will be applied to the bags of passengers like my family, not to logical human targets.
Security assets are finite.
Security intelligence is finite.
Afterthought: Thank God the New York Times didn't know these arrested men were under surveillance.