1. how is there not just some separate system not tied to main power to blast location out in case some crazy happens. and this is going at all times>?!? I think I read there are multiple ways for it go get to surface but it hasn't yet, so did some catastrophic happen is the first question. I feel like if it was stuck on the ocean floor we would have found it already. Also if they started to ascend and that failed, and they are at 6,000 feet stuck in the oceans current, yeah we aren't looking in the right area and they're F'ed unless it gets to surface and even then we'd have to find it right away because I think it can only be opened from the outside(also read that but maybe being on surface allows for fresh air to get in). Or the Kaiju got them(Pacific Rim ref)