US Postal Service CCA interview questions

Group interview, no personal questions asked. Just given a overview of how many hours and the situations that may arise on the job. They gave the applicants an opportunity to leave before they moved onto any paperwork. It seemed as though they where having a hard time hiring and keeping people after hiring with a 50% retention rate. I should have taken note that they seemed a little bit desperate just by the fact that they asked no questions, and didn't ask any questions related to skill level, or ability.