Critical equipment for Titanic sub search caught in red tape, National Geographic report says

Noises heard in search for missing sub near wreckage of the Titanic
OceanGate co-founder defends research value of expeditions to Titanic following loss of Titan sub
Titanic submersible: US Coast Guard briefs on missing sub with five believed to be aboard | ABCNL
'There is no excuse for what happened here': Director James Cameron on Titanic sub tragedy
U.S. Coast Guard leading search for lost submersible vessel near the Titanic wreckage | ABCNL
Titanic submersible: additional deepwater equipment being sent for missing sub search | ABCNL
Search for Titanic sub intensifies after banging noises heard underwater l WNT
Missing Titanic tourism sub has run out of oxygen, estimations suggest
U.S. Coast Guard leading search for lost submersible vessel near the Titanic wreckage | ABCNL
'Debris field' discovered within search area of missing submersible near Titanic wreck