You may have heard of TSA Pre-check, which gets you through the line faster and prevents you from getting groped by TSA. Last time I opted out of the millimeter wave scanner, I counted a total of 6 times where the guy rubbed his hands against my junk. Fortunately for him, I always opt out. There's also Global Entry, which not only includes TSA Pre Check, but also gets you into Immigration much faster at select US Airports. However, both of these services cost money, and even require personal interviews with unelected government bureaucrats. I was strongly considering purchasing Global Pass because of a recent return from abroad where we waited almost 2 hours in the immigration line. But during my last trip, I found a service you can get totally for free to speed you through immigration possibly as fast as Global Entry, and all you need is a smartphone!