The bin removal was actually prompted by a period when the IRA would put bombs into bins in train stations etc., see eg
https://en.wikipedia.org/wiki/Warrington_bomb_attacks
So not a completely idiotic policy.
https://en.wikipedia.org/wiki/Warrington_bomb_attacks
So not a completely idiotic policy.
But recent terror attacks (which used knives and vehicles, not bins) prompted their removal again.