Elon Musk is facing questions about his upcoming payments platform, X Money, and whether it will allow users to safely perform transactions. In a letter to Musk on Tuesday, Sen. Elizabeth Warren (D-MA) writes that X Money could pose a risk to “consumers, our national security, and the stability of the financial system,” citing Musk’s “track record operating X.” Musk said X Money will launch in early public access in April. Though Musk hasn’t shared much about the platform, former X CEO Linda