That's one of the conspirators biggest problem... the lack of knowledge about certain things
A sub( just to take something) who may be around North Korea can't hear what happens many hundred miles away.
And should there have been a American sub in that area of the vanishing/crash, I know the information would be handed through the diplomatically or civilians channels, to the the legitimate authorities
I have seen a lot of pictures on Facebook- They can read the newspaper laying on the street, but they can't find a simple huge airplane-
Yes they could if they had a satellite in that specific area.( the nearest should be around North Korea and the chinese sea and from what I have learned these satellite haven't so much widespread area of seeing, but USA is planning to send some very advanced satellite into orbit.
http://www.aviationweek.com/Blogs.as...1-8fe5d25a485d
Please correct me if I'm wrong.
Markus