Why are terrorists never brought up on ‘war crimes’…
Loyola Law School professor David Glazier, a former Navy surface warfare officer, said the pilots operating the drones from afar could – in theory – be hauled into court in the countries where the attacks occur. That’s because the CIA’s drone pilots aren’t combatants in a legal sense. “It is my opinion, as well as that of most other law-of-war scholars I know, that those who participate in hostilities without the combatant’s privilege do not violate the law of war by doing so, they simply gain no immunity from domestic laws,” he said.
“Under this view CIA drone pilots are liable to prosecution under the law of any jurisdiction where attacks occur for any injuries, deaths or property damage they cause,” Glazier continued. “But under the legal theories adopted by our government in prosecuting Guantánamo detainees, these CIA officers as well as any higher-level government officials who have authorized or directed their attacks are committing war crimes.”
The drones themselves are a lawful tool of war; “In fact, the ability of the drones to engage in a higher level of precision and to discriminate more carefully between military and civilian targets than has existed in the past actually suggests that they’re preferable to many older weapons,” Glazier added. But employing CIA personnel to carry out those armed attacks, he concluded, “clearly fall outside the scope of permissible conduct and ought to be reconsidered, particularly as the United States seeks to prosecute members of its adversaries for generally similar conduct.”
Drone attacks haven’t just become the primary weapon in the American bid to wipe out Al Qaeda and affiliated terrorist networks. “Very frankly, it’s the only game in town in terms of confronting or trying to disrupt the al Qaeda leadership,” CIA director Leon Panetta said.
Drone Pilots Could Be Tried for “War Crimes,” Law Prof Says – Law – Gizmodo.

It’s interesting that this isn’t being applied equally, as you suggest. Also, I miss the old rules that said that folks that were fighting out of military uniform could be summarily shot. Ah, the good old days.