The researchers talked to 38 adults and asked them to list letters with two lowercase print varieties. Only two listed "g" and only one could write it out properly. "Once you really nudged them ...

Daniel Kammen, an energy professor at the University of California, Berkeley, resigned Wednesday from his position as the State Department's science ... letter of each paragraph spelled out ...

However, his most biting message may have come in the form of a hidden acrostic: The first letter of each paragraph spelled out I-M-P-E-A-C-H. Mr. President, I am resigning as Science Envoy.

Also, they address one listener's email about the degree of Master of Library Science. I'm Robert Siegel. It's time now for your letters. And we're going to re-visit perhaps the most ear-catching ...