Jamie Dimon said the US has become too dependent on foreign suppliers for the materials and technologies that underpin its economy and national security. "It has become painfully clear that the United States has allowed itself to become too reliant on unreliable sources of critical minerals, products, and manufacturing — all of which are essential for our national security," the JPMorgan Chase CEO said Monday. Dimon's warning came as the bank unveiled a decadelong, $1.5 trillion Security and