[midas007]

What a flippant, uncivilized, unconstructive comment.

Defense in-depth, every little bit helps.

[tptacek]

Disagree, both in spirit and to the letter; for starters, I'm pretty sure there's still validity in a very long blog post I wrote about NIDS back in 1998:

http://insecure.org/stf/secnet_ids/secnet_ids.html

People running SAAS apps probably shouldn't waste much time with NIDS.