Where do Barr and Paul disagree?

http://lastfreevoice.wordpress.com/2008/09/10/statement-from-don-rasmussen-re-bob-barr/

 

Anybody know what Rasmussen means by a Barr "statement contrary to Dr. Paul’s beliefs"?  There are lots of areas where Libertarians disagree with Ron Paul. I list some at http://knowinghumans.net/2007/12/teflon-libertarian-moderate.html