Scale of Submarine Grounding Greater than Reported?

This article from the NYTimes seems to indicate that the US Submarine San Francisco suffered far greater injuries than have previously been reported. It also points to e-mails between Navy officials that indicate that the submarine was travelling at high speed when it collided with *whatever* it hit:
www.nytimes.com...


This story leaves us with the impression of a major impact with something... yet the sub kept moving forward at 4 knots after the collision (after it hit an undersea mountain?). My guess is that a Chinese sub (or, even, an USO) was involved.

PS: I know there is already an ATSNN thread on the sub crash... but I felt that the issue of misleading reports from the Navy was worthy of a new thread beyond the one that covered the initial accident. If the mods feel differently they can delete this thread.