Peter Henning, a Wayne State University law professor and a former federal prosecutor, talked about the release of a Moroccan immigrant, Ahmed Hannan, following 3 ½ years of incarceration for suspected terrorism. A federal judge apologized Tuesday to Hannan who pleaded guilty to attempted insurance fraud and sentenced him to 6 months in prison. \"The government needed to save face. You can\'t go from having the first terror trial with the possibility of life imprisonment to: \'We\'re sorry and please leave,\' \" Henning said.