The information about a suspected deserter – and that six people were killed looking for this sergeant – and man who allegedly left a letter saying he was deserting his duties as an American soldier, makes it clear the trade should have never taken place.
The five people this sergeant was traded for were like the CEOs of the Taliban and should have never been released, since they are now leaders. They may cause further threats to soldiers in Afghanistan now serving this country with good form. The prisoner swap may have put the lives of American service members at high risk.
This sergeant may have deserted his post, leaving behind his weapon and a note stating he was on his way to the Taliban. Desertion during combat areas used to be reason for the firing squad or life in prison.