Dr. Anthony Fauci, President Joe Biden's chief medical adviser, acknowledged Sunday that gun violence in the US is a public health emergency. 'Myself, as a public health person, I think you can't run away from that. When you see people getting killed, in this last month it's just been horrifying what's happened. How can you say that's not a public health issue?' he told CNN's Dana Bash on 'State of the Union' when asked if gun violence was a public health emergency.