Originally Posted by
N231LA
From TSA manual 1002.456 subsection 2.3a:
Identifying Valuable Items.
A. Hand Signals.
1. Agents shall use selected signals (Section 1002.456) to identify passengers wearing Rolex watches, gold jewelry, diamonds, and other expensive items to allow agents in the screening process to perform a national security despoilment.
That's classified information you just revealed.