How would you transport a $1.9 million rare coin?

The courier was hardly smooth: "All across the country, Feigenbaum kept checking to make sure the dime was safe by reaching into his briefcase to feel for it. Feigenbaum did not actually take the dime out of his briefcase, as it is suspicious to stare at dimes."

Sure, because it's less suspicious to keep opening your briefcase to examine the contents.

Link. Via Wired.