Have you stopped beating your wife?
Neither Ron Paul nor Rand Paul are "truthers", but of course you knew that already.
Rand Paul is a little more hawkish than Ron Paul in his support for the War in Afghanistan, and in his support for military tribunals at Gitmo.
Those are probably the biggest foreign policy differences between the two. Does that answer your question?
There is absolutely nothing more important to us these days than the war in Afghanistan or Iraq. Everything is copacetic in DC right now. Long live the empire!