These are what John Murphy said.
"Except for short-term traders (and professionals who trade for a living), my advice to most investors is to sit tight for the time being. It's usually not a good idea to make a lot of changes to one's overall portfolio in these types of crises. I'd further suggest you turn off your TV before they scare you into doing something you may regret later. You might also want to turn off your computer and not look at the day's charts. That may also prompt you to make some short-term mistakes. "