Public diplomacy through fingerprinting.

CBS News reports:

Promoters from 64 countries vied this week to lure big-spending Arab tourists to their countries at the Middle East’s largest tourism convention.

But not a single promoter from the United States turned up.

Instead, the U.S. government sent officials from the Department of Homeland Security to demonstrate its mandatory fingerprinting of Arab and other foreign visitors. The only other U.S. presence inside the Americas hall at the show came from a tiny boutique hotel in New York.