Here's a quote from this story
http://www.techweb.com/wire/story/TWB19980220S0001
Both Bellovin and his AT&T colleague Matt Blaze cited the vulnerability
of the Net's decentralized routing system, .... This routing
information has been accidentally corrupted several times, they said,
resulting in massive traffic flows being rerouted through single slow
machines or blocked altogether.
They said a hacker could also cause this kind of corruption.
