Daysleeper
I agree with you about the quick reaction steps it sounds like a very good idea.
You ask the question " how do you know that the bomb is not in the slide?".
I have packed slides and the biggest problem that you have is getting the slide small enough to get into the box , this involves(with the bigger slides ) two or three days of withdrawing the air inside the slide with a vac pump.
The stowage in the aircraft is such that it would not be easy to hide a bomb inside without it being noticed by the cabincrew on there checks , no doubt someone here will tell us that you could hide a bomb in a but in my opinion there are far easyer and more descreet places for such a device to be hidden.