If you want to hear Morning Edition host Carl Kasell speak on helium, listen to today's retrospective show which compiles some highlights. I got to attend a recording when they came to DC and did a show at the Lisner Auditorium at George Washington University in May 2006 (featuring former Mayor Anthony Williams).
If you're not familiar with the program, the laughs about the week's news is a welcome antidote. It's usually broadcast on Saturdays.
Of particular interest to me in this weeks' show was Barack Obama's apology to a reporter. It's featured in the third segment of the program (each runs about 17 minutes). I went back to listen to Barack Obama's appearance on August 6th, 2005. Every week they feature a guest in a game called, "Not My Job." You can listen here.