Last year, Elvis (now host of Under the Influence on TCM!) was caught coming across the Canadian border with an undeclared $12k and some Cuban cigars. Which, who wouldn't try it, right? You can't hold that against him.
Anyhow, turns out he owes just over $500,000 in delinquent taxes to the IRS. So maybe the $12K in cash is a sound form of tax shelter, rather than just weekend party money? Times film critic-turned-anti-government tax pirate? It would make a good movie.