Los Angeles has seen a recent spike in flash mob robberies at high-end retailers, part of an ongoing issue that has prompted L.A. officials to announce a new multi-agency task force to crack down on the problem. Tina Patel has more. #losangeles #robberies #news "CBS Evening News with Norah O'Donnell" delivers the latest news and original reporting, and goes beyond the headlines with context and depth. Catch the "CBS Evening News" weeknights at 6:30 p.m. ET on the CBS Television Network and at 10 p.m. ET on the CBS News app. Subscribe to the "CBS Evening News" YouTube channel: bit.ly/1S7Dhik Watch full episodes of "CBS Evening News": cbsn.ws/23XekKA Follow "CBS Evening News" on Instagram: bit.ly/1T8icTO Like "CBS Evening News" on Facebook: on.fb.me/1KxYobb Follow "CBS Evening News" on Twitter: bit.ly/1O3dTTe Download the CBS News app: cbsn.ws/1Xb1WC8 Try Paramount+ free: bit.ly/2OiW1kZ For video licensing inquiries, contact: li...