Like so much else in life, point of view is everything.
http://www.theguardian.com/world/2005/aug/05/iraq.usa
As almost always, that "line" depends on which side you are on.
http://www.theguardian.com/world/2005/aug/05/iraq.usa
Quote: Elusive sniper saps US morale in Baghdad
Commanders weigh their options as 'Juba' notches up more kills
They have never seen Juba. They hear him, but by then it's too late: a shot rings out and another US soldier slumps dead or wounded.
There is never a follow-up shot, never a chance for US forces to identify the origin, to make the hunter the hunted. He fires once and vanishes.
Quote:"We are professionals. There is a line between a maniac with a gun and a sniper," said Mike, 31, a corporal with a reconnaissance sniper platoon who did not want to his surname to be used.
As almost always, that "line" depends on which side you are on.