We begin the "instant index" tonight with the latest installment in the tale of the treasury secretary that writes in a squiggle. Last night, we showed you this signature about to be on all your... See More
We begin the "instant index" tonight with the latest installment in the tale of the treasury secretary that writes in a squiggle. Last night, we showed you this signature about to be on all your money. It's white house chief of staff jack lew. Today at his nomination, lew admitted to being challenged in penmanship and the president rubbed in it. I'd never noticed jack's signature. And -- and when this was highlighted yesterday in the press, I considered rescinding my offer to appoint him. Jack assures me that he is going to work to make at least one letter legible. In order not to debase our currency should he be confirmed as secretary of the treasury. And also tonight, we want you to listen to a song that could save your life or maybe at least the bumper on your car. Here it is. ♪ Hold me closer tiny dancer ♪ ♪ count the headlights on the highway ♪ it's, of course elton john's "tiny dancer." But did you know there is new research out of london tonight that says you may be safer in your car if you play this song while you're driving? Apparently the tempo of this song slows the human heartbeat down to 60 beats a minute. So, you relax and ease up on the gas pedal. Who knew? And, if you see something buzzing out there for our "instant index," be sure to tweet it to me, @dianesawyer. Coming up next, we join the
This transcript has been automatically generated and may not be 100% accurate.