Important Takeaways:

• Just one day after pagers used by hundreds of members of the militant group Hezbollah exploded, more electronic devices detonated in Lebanon Wednesday in what appeared to be a second wave of sophisticated, deadly attacks that targeted an extraordinary number of people.
• Both attacks, which are widely believed to be carried out by Israel, have hiked fears that the two sides’ simmering conflict could escalate into all-out war.
• Hezbollah leader Hassan Nasrallah said Thursday the mass bombing attack on the group’s communications devices was a “severe blow” and said Israel had crossed a “red line.”
• Tuesday’s explosions were most likely the result of supply-chain interference, several experts told the AP — noting that very small explosive devices may have been built into the pagers prior to their delivery to Hezbollah, and then all remotely triggered simultaneously, possibly with a radio signal.
• The specifics of Wednesday’s explosions are still uncertain. But reports of more electronic devices exploding may suggest even greater infiltration of boobytrap-like interference in Lebanon’s supply chain.
• An attack of this caliber requires building the relationships needed to gain physical access to the pagers before they were sold; developing the technology that would be embedded in the devices; and developing sources who can confirm that the targets were carrying the pagers.

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