On this occasion, they were dealing with one nutter with a pocket knife.Did anyone see the video of bumbling plod with their little tazers? If there had been three attackers or one with a gun they'd be running for the hills. The French or American cops would have dealt with him.
Most terrorists are happy ( brainwashed ) to die "for the cause".
If you are dealing with a nutter, you can expect them to shout all sorts of things. He might equally have been shouting "I am Santa!" or "Death to gays!" or "No Pope here!"surely anyone shouting 'Alan's snack bar' or in this case 'For Syria', should be treated as a terrorist.
That was a car bomb left in a parked car and warnings were given in plenty of time. Had the location of the bomb given in the warnings been accurate the death toll would have been much lower and, probably the bomb would have been found and dealt with before it exploded.The Omagh bombing, for example, was successful in killing 29 and wounding over 220, with no suicide bomber involved.