Pretty much, although most TsA check lines no longer require even a boarding pass- so in theory you could pack a bomb with you then bypass all the security theater with this.
Boarding pass checks etc are independent of the security checks.
At least security never checked my boarding pass or ID, it was usually a step before and after security checks.
> CAT is linked electronically to the Secure Flight database, which confirms travelers’ flight details, ensuring they are ticketed for travel that day.
