[PatrickHenry]

You beat me to it. I just posted this, but it got pulled for being a duplicate.

[PatrickHenry]

Ping (this is the original thread, my duplicate is gone).

[This ping list is for the evolution -- not creationism -- side of evolution threads, and sometimes for other science topics. To be added (or dropped), let me know via freepmail.]

[sourcery]

There is always the risk that between the time one searches to see whether an article has already been posted, and the time at which one can post the article oneself, that someone else may post the same article.

A two-phase commit architecture would solve the problem--but I don't think it would be worth the effort :-)