Less than two months after federal prosecutors suffered a stingingdefeat in the Port of Miami trial, they return to the courtroom Mondayto take another stab at alleged public corruption.

Last spring’s trial sought convictions against former port directorCarmen Lunetta, port businessman Neal Harrington and California bondunderwriter Calvin Grigsby. U.S. District Judge Donald M. Middlebrookshalted the case, saying prosecutors had presented insufficient evidenceto convict the three on charges of stealing $1.6 million in publicmoney.