NPR’s Scott Simon longs for the peaceful days of Walter Cronkite, when horrible events like the Tucson shootings were unheard of: SIMON: People have observed over the past few years, for example, that, you know, this just didn’t happen when 63 million people watched Walter Cronkite every night. Tim Graham at Newsbusters confirms Simon’s claims about the peacefulness of the Cronkite era**. (**Not counting the assassinations of JFK, RFK, MLK, Malcolm X, the shooting of George Wallace, two attempts on Gerald Ford’s life or the wild over exaggeration about the size of Cronkite’s nightly audience) And let’s not forget the...