New York CNN  —  The US is at a low risk of an imminent debt crisis — but high risk in the long term, billionaire investor Ray Dalio writes in a new book. The US government debt situation is “nearing the point of no return” and approaching a “death spiral” that could threaten the stability of the world’s largest economy, he writes in the book, “How Countries Go Broke: The Big Cycle,” published Tuesday. Some economists and investors have been sounding the alarm about the deficit for years. But