Accusations of Guilt Must Be Proven

Glenn Greenwald makes an excellent point:

If I had the power to have one statement of fact be universally recognized in our political discussions, it would be this one:

The fact that the Government labels Person X a "Terrorist" is not proof that Person X is, in fact, a Terrorist.

That proposition should be intrinsically understood by any American who completed sixth grade civics and was thus taught that a central prong of our political system is that government officials often abuse their power and/or err and therefore must prove accusations to be true (with tested evidence) before they're assumed to be true and the person punished accordingly. In particular, the fact that the U.S. Government, over and over, has falsely accused numerous people of being Terrorists -- only for it to turn out that they did nothing wrong -- by itself should compel a recognition of this truth. But it doesn't.

Which is why fair trials--either criminal or military--are important to establish the facts about guilt or innocence.