Ron Paul is full of courage and principled plans for dealing with what ails this country.
What I've heard of his solutions sound inadequate and dangerous. Our enemies would take them as a sign of weakness and attack all the harder. This is not a neat conflict that can be resolved by libertarians precisely throwing rocks from the moon. It cannot be done neatly, cheaply nor quickly.
Also the domestic rollback, as much as I love to see it, realistically will only be done on an incremental bases, much as growth was incremental. I'd love to see a bill starting with "The following are hereby repealed" and continue with a list of laws that run a volume in the Federal Register and a President that signed a similar executive order at his inauguration. I don't expect to see either.