Silicon Valley warns U.S. defense supply chain unprepared

Technology executives and venture capitalists at the Fortune Brainstorm Tech summit warned the U.S. defense supply chain is unprepared for modern warfare. The group, including leaders from General Catalyst Institute and Tagup, said the U.S. relies on vulnerable supply chains for critical minerals and high-tech components. Deeper public-private partnerships and modernization of government acquisition are needed to compete with China.