Christian Reconstructionism is essentially a religious and theological movement within Protestant Christianity that calls for Christians to put their faith into action in all areas of life. The thing is, they want this to be the rule of the land, which means that ideally every nonchristian will be converted and likeminded. Forget that it'll never happen for a second and consider the fanaticism behind such an ideal. Remind you of anyone? Then again, I've always maintained that there is a fine line between the Islamists and the Christian Fundamentalists, mainly because I have a huge problem with biblical inerrancy.
The reason I posted this in the first place is because of something I read this morning on AlterNet. It's a new post in Church & State that I recommend reading called "Christian Reconstructionists Are Trying to Take Dominion in America -- and They Have Powerful Friends".