[ATTICUS]

" They are another tool that when learned and used properly are an asset. "

Ditto. But they are not for everyone, but to each his/her own.

Re laser failure: People should be well practiced with iron sights, but I think that most people are capable of quickly learning the complexities of pistol sights.

At defensive distances, and in most defensive situations, the sights won't be used at all, but it's hard to miss that red dot (if you remember, or have time to turn it on) . Try practicing "quick shooting" with one and you'll quickly learn why so many shots go astray in high stress situations.

Another advantage of a laser, is that a person doesn't have to sight down the bore to deliver accurate fire. This allows you to shoot from behind cover and at odd angles.