York.Multics@MIT-MULTICS@sri-unix (06/30/82)
While we do have the capability to salvage the SRB's from 3000 feet down (I am pretty sure the Alvin has made trips down as far as 9000 feet), it is probably just not worth the effort. If they hit the water with no parachutes (excuse me, decelerators), they are probably damaged beyond the tolerances necessary for further launches. The technology in the SRB's is also probably not interesting enough to worry that the Russians will get them if we don't.