About 135 medical marijuana clinics are legal in Los Angeles, but 945 are registered to pay taxes. That means big revenue for the city -- from illegal businesses. We hear why some council members want that to end, even though the city always needs money. We also hear how the omnibus federal spending bill says both "yes" and "no" to legal marijuana.
Also, is John Muir’s idea of "wilderness" still relevant 100 years later?