Wharton's Jeremy Siegel says it's 'scandalous' the U.S. doesn't have a rare earths reserve
1. China monopolizes 90% of rare earth refining, threatening Western supply chains. 2. Siegel proposes U.S. rare earth strategic reserve amid growing trade tensions. 3. Trump's tariff threats caused significant market declines, erasing $2 trillion in value. 4. Siegel optimistic about resolving trade conflicts before Nov. 1 tariff deadline. 5. Market likely to rebound post-resolution of trade talks with China.