(OSSU) While I agree with your point about driving down the road and the potential for endangering lives, I don't think you can compare that with planting a bomb in a building and the potential it does indeed have for endangering lives in the after math.  I can not provide a direct quote to this point from a reliable source, yet I think it is an important point to make.  Without it, allowing Whitehorn's quote about taking great care to insure no one would be hurt, including the janitorial staff, to stand alone, would seem terribly POV.   OSSU