The question is real because the Beirut main port was badly damaged a couple of years ago by an explosion in poorly stored ammonium nitrate fertiliser.
Since then, Hezbollah has been flying in weapons, and the word is that there is a huge stockpile at Beirut International Airport.
(You would not expect Hezbollah to do anything useful, like repair the port)
Rumors abound about Hezbollah storying weapons at Beirut's International Airport. The story has so much backing to it, Lebanon's own media demanded to take a stroll around to some of the hangars only to be rebuffed by Lebanese authorities.