. An unlikely Instagram star: US airport security

It's hard to imagine America's Transport Security Administration (TSA) winning a popularity contest. But there it is, sandwiched between Rihanna and Beyonce on RollingStone.com's 100 best Instagram accounts. Yes, the TSA - the government agency that rivals the Internal Revenue Service for unpopularity with the public - ranked No. 4 for its Instagram. It bested megastar Beyoncé (No. 5). The inescapable Kim Kardashian ranked first, followed by National Geographic. Even NASA only rated No. 6. "We ranked the TSA in the top 5 as we found it fascinating, entertaining and terrifying as most of the feed is devoted to photos of items the TSA has confiscated from luggage at various airports," Rolling Stone spokeswoman Kathryn Brenner said in an email. "It opened our eyes to what they have to deal with on a regular basis - from hatchets and brass knuckles to loaded handguns, live eels and a shocking number of batarangs [a bat-shaped throwing weapon] and we really enjoy seeing airport life from their perspective."