How about just giving Iraq an effective legal system?

Another reason to oppose arbitrary, indefinite detention of suspects without trial:

The effort to reshape attitudes among the growing detainee population is aimed at addressing a problem that has vexed U.S. troops in Iraq for the past four years: Military detention facilities have served as breeding grounds for extremist views, transforming some prisoners into hard-core insurgents, according to military analysts.

We want the guilty in jail, and the innocent out. Consider that while we debate the restoration of habeas corpus to our legal system.