Of course we in this forum should NOT be putting ideas into the minds of the terrorist community, but alas as soon as this robbery hit the international news media, the chainlink fence weakness was exposed to all the world.
God forbid, but if such an attack takes place, the powers-that-be can not shelter behind the plea that they didn't know about it and didn't conceive of such a daring plan.
The same horse manure was trotted out by the 9/11 official whitewash, though the USA military and other authorities had been practising and drilling for "aircraft as missiles" well before that awful day.