New York - A growing number of travelers are signing up for the government’s expedited airport screening programs, only to face another wait.

After angry fliers missed flights this spring because of lengthy security lines, government officials promoted the PreCheck and Global Entry systems. The number of applicants for PreCheck more than tripled in a few months, climbing to 16,000 a day in May.

Now there is a new logjam. It can take weeks or even months to get an appointment for a brief in-person interview needed to complete the enrollment. Travelers can try walking into an enrollment office without an appointment, but that can mean waiting for hours or even getting turned away.

The Transportation Security Administration recently improved wait times at U.S. airports by hiring more agents and paying more overtime. But any hiccups in signing up travelers for expedited screening could slow down the government’s efforts to revamp airport security and foil some travelers’ hopes of speeding through security this summer.... Read More: VIN