Hackers?
SkyWest plane burst into FLAMES on the tarmac as it prepared to depart from Nashville International Airport
http://www.dailymail.co.uk/news/article-3189466/Shocking-moment-SkyWest-plane-bursts-FLAMES-tarmac-prepares-depart-Nashville-International-Airport.html
AND
LA-bound United flight makes emergency landing in London after sparks were seen coming from seats in first class and the cabin filled with smoke
http://www.dailymail.co.uk/news/article-3187938/United-Airlines-flight-bound-Los-Angeles-forced-return-London-Heathrow-sparks-seen-emerging-Class.html

EXPERIMENTING WITH A NEW WAY TO "AIRPLANE" PEOPLE?