What Israel has just done is, via *any* method, reckless. They blew up countless numbers of people who were driving (meaning cars out of control), shopping (your children are in the stroller standing behind him in the checkout line), et cetera. Indistinguishable from terrorism.
Here's the (new) report describing how NSA is laying the groundwork to track people down through the microphones around us every day (your phone calls, a friend's laptop, the phone next to you on the train, that Amazon Echo on the shelf...):