Author, reporter, columnist and blogger Gustavo Arellano is now the host of Four O'Clock Tuesdays with Gustavo Arellano every, yes, Tuesday at 4 p.m., on KPFK. The show's focus is newsy and local. Last week he talked to organizers of the save the taco trucks cause, and to the head of the San Diego State English department about the ABC show "Homeland Security USA."

Historical read: Arellano also has an OC Weekly cover story shredding the legends around 19th-century Californio bandit Juan Flores, who was lynched near the old plaza in Los Angeles for the killing of Sheriff James Barton.