These are the insane new technologies airports are using to learn everything about you

Airports work tirelessly to know everything that's going on within their walls at all times. While sometimes the TSA's security efforts may upset everyday passengers, most people don't know the half of what's really going on in the background.

In fact, airports around the world are using a variety of new technologies to make it easier to keep tabs on people, both for security and for convenience.

Here's a look at all the way airports are using tech to learn everything about you when you set foot inside them.

SEE ALSO: A Norwegian airline created an emoji-only web address to reach millennials

Full Body Scanners

Probably the most well known "new technology" is the full body scanner. The most popular scanners used in airports use either X-Ray technology or "non-ionising waves." They were first implemented to reduce lines at the airport, but recently the scanners have become more of a headache. The problem is that because anything out of the ordinary would trigger an alarm requiring an airport employee to perform a pat-down, these scanners have actually started making lines worse. 

Iris Scanners

Airports are now using iris scanners to keep tabs on passengers. It isn't as creepy as it seems, though. For instance, Gatwick Airport in London uses iris scanning technology to make getting through lines faster.

The airport doesn't differentiate between domestic and international passengers when performing security checks, but it does need a way to quickly distinguish between the two. So the airport has domestic passengers quickly scan their iris, and then, when they reach their gate, their irises are checked again to make sure they completed the boarding process and actually made it on the plane.

Gatwick Airport tells Business Insider this has decreased wait time tremendously, and has made it a breeze for people in England to get from one city to another.

Smart Bag Tags

One problem airports face regularly is losing baggage. Now airports like Hong Kong International Airport are using RFID technology to track where bags go. The idea is that these tags use Bluetooth and other mobile technologies to give passengers real-time updates about where their bags are.