Fighting has escalated in the Middle East after thousands of pagers and walkie talkies held by Hezbollah operatives exploded across Lebanon last week. That attack is the most recent example of supply chain interference — a global problem that national security officials say is now “rampant.” 

Bloomberg cybersecurity reporter Katrina Manson and defense and intelligence reporter Peter Martin sit down with Big Take host Sarah Holder to break down what we know about how and when the Hezbollah pagers were turned into bombs — and what countries like the US and China are doing to protect their supply chains from foreign infiltration. 

Read more: Exploding Pagers Raise Global Supply-Chain Security Concern