The TSAs PreCheck program is doing a decent job of moving travelers along at many airports. Theyve quickly come to realize that some airports are ill prepared to handle the diverging traffic that PreCheck has created. 400,000 applicants have been cleared to join the program since December, Fast Company reports, and thats not even counting the regular travelers that are sometimes waved through PreCheck to keep things moving swiftly. The TSA knows it needs to come up with something better. Its launched a new InnoCentive challenge in hopes that someone out there has the answer.