Janet Yellen actually said...
I think it is important for Congress to recognize that as the economy recovers and both short- and long-term rates move up, a situation in which the Government's funding costs remain as low as they are, if we are successful in achieving our goal of getting the economy back on track, this is a very temporary situation.
Context
Yellen emphasizes the temporary nature of low government funding costs during economic recovery.
11/13/2013