Gerbils Used To Detect Terrorists! RIF 23: How are gerbils used in airports to detect terrorists? How long does a snowflake take to reach the sea in Greenland? How many Christian denominations are there worldwide? SUBSCRIBE - New Videos Every Monday & Thursday https://www.youtube.com/user/Thoughty2 Help me make better videos, support me on Patreon: http://bit.ly/1II0lLh FACEBOOK: https://www.facebook.com/pages/Thoughty2/439001992823183 TWITTER: https://twitter.com/Thoughty_2 THOUGHTY2 MERCH