What Sadiq Khan actually said was that part and parcel of living in a great global city is being prepared for these things. He wasn't passing it off as something to dismiss or resign ourselves to - well, the jury's still out on this one, I think.
Arguments can be made from both sides.
Sadiq Khan also said London is safe. Again, perhaps he should relax MPs' security so as to prove his point. Otherwise, he's just a smarmy arsehole.
The fact is that until Islamists join the rest of progressive and secular society - but they won't, will they. Islamists want to destroy secular society and replace it with Sharia.
The likelihood of Islamists joining us in the 21st century is about as likely as devout JWs publically criticising the GB.
Ain't gonna happen, unfortunately.
But thank goodness The West has drones, bombs and missiles for jihadi nutters. Every cloud ...