She must be crazy, and stupid or just trying to keep the mass calm but this is a warning signal. She said "I don't believe we will see another financial crisis in our life time"
Ben Bernanke said at that start of the last recession he doesn't see a recession in sight. We later found out that was a lie and he couldn't say it because of his position. Now he calls his reaction of money printing an experiment and we will have to wait to see the results.
The fact janet yellen said that means perhaps a financial crisis is around the corner? I strongly believe we are coming very closely to a recession at the least. When the leaders say keep calm, its time to panic.