"A bunch of religion-driven fanatics just need a bunch of martyrs to pour some petrol into their tank, and the world just needs to see the U.S, behaving just as brutally as Isis.
The Isis leadership should be put on trial bu the International Court of Human Rights, charged with war crimes and when found guilty, sentenced accordingly."

Kill every single IS "fighter" in existence and not one single person would rise up to avenge them - they are complete scum that not even their own co-religionists want any association with.

Why go to the trouble and expense of trials and incarceration they wish for, above anything else in the world, a "martyrs death" - every possible means in the world should be used to aid them in achieving that goal.