Bob Cargill has an article up on Bible and Interpretation discussing the need to abandon the BC/AD designations in favor of the more handy BCE/CE. I, for one, am in perfect agreement, but I’d like to add a couple things Bob does not discuss.
First, most people don’t even use the AD designation correctly to begin with, so it seems odd to me to be dogmatically opposed to abandoning it. The year is supposed to follow AD, not the other way around. It’s AD 1314, not 1314 AD (didn’t you see Braveheart?).
Second, the designation is not an anti-Christian or atheist propaganda campaign. It was not invented by scientists, the Chinese, the Russians, or the Jews. It was invented by Christians in 17th and 18th century Europe. In Latin it is Vulgaris Aerae, and it was used to distinguish the calendar of the common folk from the regnal calendars of royalty. It has been in use for centuries by Christians and others. It is completely harmless, and its use helps to foment a little more unity and respect in a very globalized academic and ecclesiastical community (an ideal with which no one should be at odds). I agree with Bob that it’s irrational to oppose it.