Packet sniffing & regular users

[Brian Kim <bmhkim@gmail.com>]

Hello all,

I'd like to give regular users the ability to sniff packets (and
possibly drop the NIC into promiscuous mode?), without having to deal
with sudo or su. How could I go about doing this? And if you provide a
solution, what sorts of security concerns does it present, aside from
the obvious "anyone can see anything" sort of concern?

Thanks!
Brian

-- 
"As a result of the war, corporations have been enthroned and an era of
corruption in high places will follow, and the money power of the
country will endeavor to prolong its reign by working upon the
prejudices of the people until all wealth is aggregated in a few hands
and the Republic is destroyed. I feel at this moment more anxiety for
the safety of my country than ever before, even in the midst of war."
       Abraham Lincoln, 1864