The U.S. Nuclear Regulatory Commission studied the safety of nuclear plants in the United States. The Peach Bottom nuclear plant in Pennsylvania is not safe from a natural disaster.
The report says if a power loss occurs for a long time, fuel rods in the reactor could be damaged, releasing radioactive isotopes within two days. It is the same General Electric design as Fukushima Daiichi.
Not surprisingly, Congress told the Nuclear Regulatory Commission to double check their findings.