Richard Dawkins urges all atheists to openly state their position -- and to fight the incursion of the church into politics and science.
http://www.ted.com/talks/richard_dawkins_on_militant_atheism.html
I haven't had time to watch the video, but as an atheist I find the term 'militant' atheism quite unsettling and unnecessary. So many religious beliefs have been the cause of wars, bloodshed and torture. Religions have successfully merged with politics to create devastating 'militant' machines and regimes that propogate much horror.
Why should we atheists choose to use such aggressive terms when our goal is to bring about the exact opposite that has been preached in the name of gods?
I agree that we need a more proactive stance against those who would rather wish humanity to regress back to the dark ages, but I'm sure a better term could be found that is more in line with humanism and less as a political ideology. Just my thoughts on the matter