I don't think President Trump was just commenting on one point.  People may want to forget the use of a truck to run over people on the bridge near Parliament and the killing of the police officer near by with a knife.  Well two months later, the exact same type of attack takes place again. I guess the Mayor of London couldn't think it would happen again?  No armed police at tourist locations.  Eight minutes to get a policeman with a gun to the scene?  The only thing they got right was to kill the terrorists before anyone else got killed.

So in the end, how would you rate the London Mayor in his efforts to keep the citizens and tourists safe in a soft target environment like London?  Pretty poor planning.  If this was Honolulu, the recall vote would be next week, if not the impeachment.  No one in their right mind is going to the UK in the near future.  Right now, there are no Japanese tourists going anywhere in Europe since last summer.  That is why JAL started flying to Kona.