Bob Barr is a neocon in disguise that is using the Libertarian Party to advance his career.
I don't think he has really changed at all. If his voting record changed that's part of his plan.
Remember, Bob Barr was the kind of person who did not at all mind that he was breaking apart families, ruining lives, and destroying marriages by putting innocent people in prison.
People that cold and evil don't change quickly.
No if it was part of the plan he would just publically state his opposition to those things while actually voting for them.
Just like McCain does about small government and Obama does on the war. Obama says he is anti war but actually is voting for more war. Same with McCain saying he is for small government but votes for big government.
The media never reports their voting record, just what they say in public.
The fact that Barr has changed his voting record means he has changed.