This is my first post to these forums,although ive been reading them for quite a while,and i couldnt help noticing the polarisation of opinion.
If the OP feels the need to carry a piece whilst out cycling then he obviously feels that it is a valid item of bike kit, whether you agree or not.....
I live in the post industrial wasteland that is northwest england, which ,with all due respect to your American cities, is hell to live in, and heaven to ride out of.
Within a 25 mile radius of my house I have the cities of Manchester( location of velodrome),Liverpool , Bolton, Blackburn,Burnley, Oldham,Rochdale, Preston,
each of which has its own particular brand of scum,drug dealers,muggers and general A-holes.
In 20 years of training and touring I have never once thought "damn,I wish i had a gun to get me out of this one".
On the whole, folk tend to view me as a crazed maniac myself for wearing tight lycra on a skinny bike and avoid me like the plague (apart from chicks,who love the shaved legs....)
I find that a decent frame fit pump in the right hands is weapon enough for the mean streets, and i reckon most europeans would feel the same way.
Americans, dont take this as a personal insult ,but i feel that its a sad reflection of your society that this thread came to be in the first place.....