Scientology evolved from the science fiction writings of L. Ron Hubbard ("'Rock Center with Brian Williams' explores Scientology's 'Narconon,'" Web, April 5). It is not a religion, but was patented as such by Hubbard in order to corner the market on his self-help, feel-good books.

A year ago, not many people had heard of Lena Dunham. This year, in a sign of her stunningly swift path to major fame, the young creator and star of HBO's "Girls" was one of the top draws of the weekend's New Yorker Festival, the annual gathering where fans of the magazine flock to hear their favorite authors, actors, directors, artists and politicians interviewed, of course, by their favorite New Yorker writers.

"Desperate Housewives" star Eva Longoria is leaving Wisteria Lane for 1600 Pennsylvania Ave.

Promoting the newsmagazine "Rock Center" in advance of its Halloween-night debut has been something of a challenge for anchor Brian Williams and his NBC News colleagues.