Ambulances arrive to American University of Beirut Medical Centre (AUBMC) after more than 1,000 people, including Hezbollah fighters and medics were wounded (REUTERS/Mohamed Azakir)
From the moment pagers began exploding across Lebanon, theories began to circulate on how devices considered outmoded in much of the world were turned into dangerous weapons that killed several people and wounded almost 3,000.
As Lebanon accused Israel of engineering the attack aimed at Hezbollah militants, much of the debate centred on the possibility that the supply chain for the retro devices had been compromised. One prevailing idea was that the pagers had been engineered so that their batteries would heat up until the devices exploded.
