Search for missing Titanic sub running out of time as criticism of OceanGate company mounts (Video)

Search crews are still trying to locate the missing OceanGate sub believed to be thousands of feet beneath the surface of the ocean. Officials expect the deep-sea craft to run out of breathable oxygen at some point Thursday. The sub went missing on Sunday during an expedition to the Titanic's wreckage. Roxana Saberi has the latest on the search and Art Trembanis, a professor of marine science who has worked directly with OceanGate, joined CBS News to talk about the vessel and possible rescue options. CBS News Streaming Network is the premier 24/7 anchored streaming news service from CBS News and Stations, available free to everyone with access to the Internet. The CBS News Streaming Network is your destination for breaking news, live events and original reporting locally, nationally and around the globe. Launched in November 2014 as CBSN, the CBS News Streaming Network is available live in 91 countries and on 30 digital platforms and apps, as well as on CBSNews.com and Paramount+. Subscribe to the CBS News YouTube channel: https://youtube.com/cbsnews Watch CBS News: https://cbsn.ws/1PlLpZ7c Download the CBS News app: https://cbsn.ws/1Xb1WC8 Follow CBS News on Instagram: https://www.instagram.com/cbsnews/ Like CBS News on Facebook: https://facebook.com/cbsnews Follow CBS News on Twitter: https://twitter.com/cbsnews Subscribe to our newsletters: https://cbsn.ws/1RqHw7T Try Paramount+ free: https://bit.ly/2OiW1kZ For video licensing inquiries, contact: licensing@veritone.com