12 PM ET: US’ nuclear warning, drug overdose epidemic, Boeing settles & more

As “sham” referendums get underway in four Russian occupied areas of Ukraine, the US warns Moscow not to use nuclear weapons. President Joe Biden has announced new funding to tackle the opioid crisis - we’ll bring you the details. Hurricane Fiona is heading to Canada and residents have been told to prepare for the worst. Boeing has agreed to settle charges claiming the company misled the public over safety. Plus, retired Supreme Court Justice Stephen Breyer sits down with CNN’s Chris Wallace.To learn more about how CNN protects listener privacy, visit cnn.com/privacy