In Iron Man 3, about 25 minutes into the movie, one of Aldrich Killian's henchman walks over to a guy, and asks,
"Can you regulate?".
Then Happy Hogan bumps into the person who was asked, making him drop the suitcase. Out of the suitcase drops a bunch of silvery metal things, that look sort of like dogtags. What were those things, and why did the guy want them?