Clear, TSA PreCheck, and Global Entry are trusted traveler programs offering expedited airport screening. Clear is a private program that uses biometric technology to verify your identity and speed up the security process. At the same time, TSA PreCheck is a government program that allows you to go through a separate security line and keep your shoes, belt, and light jacket on. Global Entry is a program that includes TSA PreCheck and allows for expedited customs and immigration processing when traveling internationally. Which program to choose depends on your travel needs and preferences. If you only travel domestically and want the fastest security experience, TSA PreCheck might be the best option. If you travel internationally frequently, Global Entry may be more beneficial. Clear is a good option if you frequently travel through airports that offer the service and want to save time on identity verification.