I myself attended a symposium that Rep. Tom Bliley, then chairman of the powerful House Commerce Committee, addressed via teleconference. Reading a prepared statement, he included the "stage instructions" -- such as "pause for emphasis" -- that his speechwriter had inserted. Where one line had accidentally been duplicated, Bliley read it a second time. Rep. John Salazar related this anecdote: "You know, when I was debating what became the 2008 Farm Bill, I had a member of the Ag Committee actually ask me if chocolate milk really comes from brown cows. I asked if he was joking, and he assured...