A criminal probe by the US Department of Justice into the Federal Reserve has reportedly spooked investors, leading to a "sell America" market. However, the focus and outcome of the probe are unclear, with some reports indicating the DOJ is investigating Fed Chair Jerome Powell, while others mention separate probes into unrelated matters such as baby formula and fertilizer markets. The impact of the probe on the stock market is also uncertain, with some reports suggesting it is being shrugged off, while others note a negative reaction.