Fox had a segment on Able Danger last week. The panel thought this was not a legit story. I can see their point - one source who has no evidence to back up his claims (yet).
What more can be covered? This really is not much of a story right now - there are no confirmed sources. If someone actually involved comes forward with these claims - this story will blow up big time. Until then, it is a bunch of people who despise the Clinton administration hoping that this is true (while fun - this doesn't make it news).
See the LTC Shaffer CSPAN thread that's in the sidebar. FReeper rodguy911 got through as a caller, with a great question about Gorelick.