sentences:  On November 20, 2007, the new LANL manager announced layoffs.Brooks resigned on January 4, 2007, because of security lapses, according to the "San Francisco Chronicle".Brooks was reprimanded for not reporting to Energy Secretary Samuel Bodman regarding the theft of computer files at an NNSA facility in Albuquerque, NM, which contained Social Security numbers and other data for 1,500 workers.