Memorial Day special: 'Dear LA,' writing tips, black skate scene

Book cover of “Dear Los Angeles.” Photo credit: Random House.

On Memorial Day, we listen back to some of our favorite recent interviews. David Kipen shares people's long-enduring complaints about LA. Grammar expert Benjamin Dreyer tells us to relax about the using "whom." Purple sea urchins are eating up seaweed off California's coast. And African Americans are trying to save roller rinks.