International travelers should certainly consider applying for Global Entry. This is a program that allows pre-screened passport holders to access expedited entry through customs when returning to the United States. It also includes TSA precheck status. Additionally, we were able to use Global Entry to speed our way through customs in both Australia and New Zealand.
The cost is $100 per passport and is good for 5 years. It also included TSA trusted traveler status which by itself costs $85.00. So for only $15.00 additional you get all the privileges afforded by TSA precheck, plus expedited entry through customs when returning to the US. I think most who travel abroad, even on an occasional basis, will find Global Entry worthwhile.
You will need to apply and the process takes some time, so don't put applying off till just before your trip. You will need to fill out an application and pay your $100.00 fee in advance. This can be done easily online. Once your application is approved, you must report to a Global Entry Enrollment Center. There you will be interviewed. Your photograph will be taken and they will take an digital copy of your fingerprints. You'll turn in your passport and it will be returned to you stamped with the Global Entry symbol.
When we arrived in Australia travelers with electronic passports (notice showed a picture of the Global Entry symbol) were directed to a set of electronic kiosks where your passport is scanned and a few questions asked. Then you go to another station where your photo is taken and matched to your Global Entry photo. (another hint: very tall passengers may need to duck down a bit so their face is in the photo). With that, you're through, unless you have items to declare.
Coming back to the US, the passport control queue at LAX snaked though the terminal like a line of lost souls on the outer ring of Hell. But we skipped all that. We each walked up to a Global Entry kiosk, inserted our passport, had our faces and fingerprints scanned and picked up the slip the machine generated and retrieved our passports. We showed our passport and slip to the customs officers and whisked right on through.
I will add, that while the TSA had been randomly giving out TSA Pre-check status to airplane ticket holders, those days are at an end. Enhanced security requirements now mean only trusted travelers can now use the pre-check lines. With all the money you've invested in your trip, I think most travelers will find getting Global Entry status well worth the time and cost entailed.
Link to US Customs Global Entry page
I stand corrected. This symbol indicates an electronic passport, not Global Entry. We saw kiosks for electronic passports in Australia and thought that was a further benefit of Global Entry. Other posters have corrected me and it means electronic passport, not Global Entry.