If this is what U.S. Treasury Secretary Scott Bessent's "detox" period for the economy looks like, investors are in for a serious amount of pain. The Wall Street selloff that has been snowballing recently on growth and trade war fears resulting from President Donald Trump's tariffs is turning into an avalanche, with the three main U.S. indices on Monday sliding between 2% and 4%. Bond yields fell sharply and markets are now pricing in a roughly 50-50 probability of the Fed cutting rates in May. The Fed meets next week and is widely expected to keep rates on hold, but more days like this on Wall Street and everything is on the table.