During a surprise visit to Ukraine Monday, President Joe Biden said the U.S. will back the country for as long as it takes. Nearly a year after the Russian invasion, a group of retired U.S. military personnel has been volunteering to help Ukrainian authorities disarm mines and other explosives. Then, San Diego County is set to experience some of its wettest, coldest weather of the year this week. A preview of what to expect. Next, we tag along for a boat ride on Lake Tahoe with researchers studying the threats to the lake's famous crystal clear water. And, a preview of some of the films screening at the Oceanside International Film Festival which returns this week to The Brooks Theater in Oceanside. Finally, a conversation with Pulitzer Prize-winning author Anthony Doerr about writing and more ahead of his appearance Tuesday at the Writers Symposium by the Sea at Point Loma Nazarene University.