[CTcard]

Moreover, any safety measure that creates a grouping of people outside of the safety area (that is, a line to get through security) is itself a target.  We are lucky that nobody has yet decided to set off an explosive or take out a weapon at in the TSA at a busy airport line because the large number of people in close proximity would likely result in a large number of casualties.

BC

Indeed. It would be very easy to do.

I believe that is basically what happened at the Ariane Grande concert in Manchester England, no?

[CTcard]

Moreover, any safety measure that creates a grouping of people outside of the safety area (that is, a line to get through security) is itself a target.  We are lucky that nobody has yet decided to set off an explosive or take out a weapon at in the TSA at a busy airport line because the large number of people in close proximity would likely result in a large number of casualties.

BC

Indeed. It would be very easy to do.

I believe that is basically what happened at the Ariane Grande concert in Manchester England, no?