SAN DIEGO — The San Diego Police Department (SDPD) Traffic Unit will conduct a DUI checkpoint tonight, Nov. 26, from 9 p.m. to 4 a.m., according to a police statement. The location of the checkpoint was not released, however. Alcohol-impaired deaths account for the largest category of overall vehicle fatalities, despite traffic deaths having declined by 23% between 2007 and 2009 from 3,995 to 3,081, according to the memo. Drivers who see a possible drunk driver are urged to call 9-1-1. The DUI checkpoint was funded by a grant from California Office of Traffic Safety.