Meat is murder Mariska Hargitay and Chris Meloni investigate the murder of a young woman who had been working undercover to expose questionable practices in the meatpacking industry on "Law & Order: Special Victims Unit" (9 p.m., NBC). This episode is highly recommended both for prospective whistle- blowers and those considering a vegan lifestyle.

Road to Morocco If you fret about your potato salad, imagine the troubles faced by the crew on "Chasing Mummies" (9 p.m., History), whose food spoils in 115 degree heat after a detour through the Moroccan desert. Fortunately, they befriend some Bedouins, who feed the starving archaeologists.

Border line When an illegal alien is deported, an immigration officer (Harrison Ford) tries to reunite her little boy with his grandparents in Mexico in "Crossing Over" (7 p.m., Showtime). A multicharacter portrait of immigrants from various nations trying to obtain legal status in Los Angeles, the 2009 feature film co-stars Alice Braga, Cliff Curtis, Ashley Judd, Ray Liotta and Jim Sturgess.