Some very worrying news indeed, oceangate have been at the front of anything titanic for something like 4 years now, for something like this to happen, especially in the modern day with telemetry and all sorts and possibly passengers on board is some pure pure bad luck and i hope for the sub to be safely recovered, i might try and find a WebSDR later in NA or Canada covering the SAR frequencies, but i think we should avoid speculation, it goes without saying that as much as i love boats and ships, i hate submersibles and it's for this reason, when i learned about kursk it sent chills down my spine, and again when i read this news, the crew must have some guts, but civillians? that's another thing entirely, i would happily sail through storms and icefields and all sorts, i would never go near a sub, i get claustrophobic in lifts as it is, i really hope it's just a comms failure and that the sub itself is ok.