The National Transportation Safety Board (NTSB) has released the final report from its investigation of the October 2021 Metro derailment, and NTSB chair criticized the Washington Metropolitan Area Transit Authority (WMATA) for not taking quicker action to correct a problem that caused a train car to slip off the tracks. Adam Tuss reports. (WRC/NTSB) More local videos here: https://bit.ly/2Pa0d1l Subscribe to NEXT: http://bit.ly/2eP1GwI Stay connected: 9NEWS Website: http://www.9news.com/ Facebook: https://www.facebook.com/ilike9news Twitter: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.