From WaPo:

KABUL — The United States has for several years been secretly releasing high-level detainees from a military prison in Afghanistan as part of negotiations with insurgent groups, a bold effort to quell violence but one that U.S. officials acknowledge poses substantial risks.

As the United States has unsuccessfully pursued a peace deal with the Taliban, the “strategic release” program has quietly served as a live diplomatic channel, allowing American officials to use prisoners as bargaining chips in restive provinces where military power has reached its limits.
We've discussed something similar on the theory that most detainees are useless rank and file--if even that much. So where do folks stand on paroling senior detainees?