The attacks on Hezbollah in Lebanon are likely to generate greater momentum for moving factory production closer to home.

The lethal detonation of hand-held pagers and walkie-talkies used by Hezbollah militants this week in Lebanon demonstrated powerful spycraft, but it also raised questions about a gaping vulnerability in the global supply chain.

That chain is astonishingly complex. So complex that it is probably beyond the powers of governments, corporations and other interested institutions to police. Even the most sophisticated participants are often unclear on who they are relying on for critical parts and raw materials, or where the risks lie.

The clear lesson of the supply chain upheavals that accompanied the pandemic was that the longer the journey entailed in making any product, the greater the chance that something might go awry, inflicting delay and higher costs.

Now there’s a potent yet related concern: The more complicated the journey, the greater the exposure to

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