I just received a personalized email invitation: "You have been identified as eligible to participate in TSA PreCheck. Simply opt in to be considered for expedited screening. Please note you will first be required to log in to your Rapid RewardsŪ account."
So I received the Opt-In box a couple days ago, and like NSX, I received an email asking if I wanted to Opt-In.
I said yes to both, so that must make some of us double special? :-)