When the director of the Los Alamos National Laboratory resigned last year, the University of California, which runs the lab, agreed to keep him on the payroll in a new job for up to 28 months so he would qualify for the university's retirement plan, according to a copy of the director's separation agreement obtained by The Chronicle. The university is paying the annual $235,000 salary of G. Peter Nanos -- at a likely total cost of about $548,333. He is now at a job with the Defense Department's Defense Threat Reduction Agency in Virginia, which is trying to develop...