It is amazing to listen to US President Franklin D. Roosevelt‘s fireside chats. In particular this March 12, 1933 one called On the Bank Crisis (mp3). Very timely. In that case, FDR was able to inspire confidence and he was able to talk to people and claim them down.
FDR: Together we cannot fail.
Now, where are our leaders?
HT: Paul Volker mentioned this in his chat with Charlie Rose.