Missing sub nears critical deadline, American detained in Russia learns appeal fate and more top headlines

An undated photo shows tourist submersible belongs to OceanGate descents at a sea. Search and rescue operations continue by US Coast Guard in Boston after a tourist submarine bound for the Titanics wreckage site went missing off the southeastern coast of Canada. RACE AGAINST TIME - Missing sub nears critical deadline when oxygen was projected to run out. Continue reading … AMERICAN DETAINED - WSJ reporter Evan Gershkovich's appeal denied by Russian court. 'BASELESS DISTORTIONS' - Adam Schiff censured by House for'false' allegations on Trump-Russia collusion.