Summary: <p><span class="Apple-style-span" style="border-collapse: separate; font-family: Calibri; border-spacing: 0px; font-size: medium;"></span></p><div><span style="font-size: small;">If you feel the ground shifting under your feet it's because on this month's Playback we break from the time honored tradition of celebrating round numbers with a special nod to the 28th anniversary of "Weekend Edition Saturday." Scott Simon takes us behind the scenes to witness the thrill of missed cues and the drudgery of endless tape editing. Also on this Playback, Susan Stamberg examines the legacy of John F. Kennedy, and composer Steven Sondheim has some critical words about his early musicals. </span></div>
