When will the US apologize to the non-western unintended victims of drone attacks?

Inside Obama's Drone Panopticon: a Secret Machine with No Accountability. Choosing targets based on probabilities implies frequent errors, and frequent killing of civilians.

The root cause of killing so many innocent people is that these attacks are directed at people's homes in areas that are not battlefields. We must recognize the difference between war on a battlefield and assassination of people off the battlefield. The latter is more like terrorism than like war.