Re:have a machine with a 4G module just poll a random Reddit page
I don't think it's a good idea to add that level of complexity to a thing as dangerous as a bomb.
First, you're adding more bulk to something that is already conspicuous.
Second, terrorists (outside of Hollywood) are not exactly technical wizards - they go to terrorist school to learn how to make a bomb, they do not go for an engineering degree and then take that knowledge and build a bomb from scratch.
To think that the average terrorist not only knows how to make a bomb without killing himself and, on top of that, also has the hardware and software skills to program something that goes and "polls a random Reddit page" is frankly pushing the bar.
Finally, and most importantly, that 4G polling is a signal saying "I'm here !" to anyone who knows how to look for it. I'm sure that broadcasting the bomb's position is not a very intelligent way to go about bombing a place.
Biting the hand that feeds IT
