Christian militia?

According to news sources, a "Christian militia" group in Michigan, known as Hutaree, was raided over the weekend.

http://www.foxnews.com/us/2010/03/28/arrests-alleged-militia-activity-midwest/

Their website carries this mission statement: "Preparing for the end time battles to keep the testimony of Jesus Christ alive"

The Fox News story reports that this group's website carries the following statement:

"We believe that one day, as prophecy says, there will be an Anti-Christ. ... Jesus wanted us to be ready to defend ourselves using the sword and stay alive using equipment."

This raises a couple of questions in my mind. First, since when does the testimony of the followers of Jesus need to be protected? If, by the power of the Holy Spirit, the testimony of the true followers of Christ has been kept alive despite persecution for two thousand years, why do these people feel the need to take matters into their own hands?

Secondly, where do they get the notion that Jesus wants us "to be ready to defend ourselves" with weapons? Show me the biblical passage. The only weapons that true Christians need are Scripture and prayer. Paul points this out clearly in Ephesians 6:10-18 and in 2Corinthians 10:4-5. As a pastor friend of mine once said, "If it's a weapon that the world can use, it's not of Christ."