Fire with Fire

[Fuchs]

find out who's talking and where they are.
lay down GPS guided bombs to everyone of them at the same
time is what i'd suggest.

Complication #1:
Half of the people on the phone sit on a moving motorcycle, shadowing a MRAP patrol.

Complication #2:
The others sit in villages, among civilians. You'd get one possibly quite unimportant guy with a mobile phone and kill also his family of ten.

There are reasons why the hundreds of thousands of soldiers who went to Afghanistan didn't solve the riddle yet.