What the Fuck is a Luftballon?

Remember "99 Luftballons", the bouncy new wave nugget about balloons floating over the Berlin wall, triggering defense systems that lead to nuclear apocalypse?  Just in time for our political holocaust, Nena has dusted off this chestnut for a three city US tour of small clubs, block parties and bar mitzvahs with a show in NYC tonight, so I went to the source to answer the question that's bothered us all for 33 years:  What the fuck is a luftballon?  Turns out the translation is not exact: "luftballon" means air balloon, with no color specified, so it could be blue or green or yellow.  Or orange.  In 2016 it's definitely orange.