Los Angeles October 23, 2024 6:10 pm LA Metro piloting weapon detection technology at Union Station With around 152 weapon related arrests made last year, LA Metro is testing new security measures. Camilla Rambaldi reports for the NBC4 News at 4 p.m. on Oct. 23, 2024. US & World Videos 2:36 Canyon Crest Fire spreads in Riverside County 1:37 Dodgers players answer how they can win the World Series against the Yankees 4:52 Southern California man with silicosis awarded $52M 2:39 Future Olympic gymnasts root for Team USA from Long Beach 2:05 Hit-and-run driver kills a woman in Baldwin Hills