You’ll be hearing a lot about Watergate in the next several weeks, as the 50th anniversary of the infamous June 17, 1972, burglary at the Democratic National Committee headquarters approaches. There will be documentaries, cable-news debates, the finale of that Julia Roberts miniseries (“Gaslit”) based on the popular Watergate podcast (“Slow Burn”). I’ll be moderating a panel discussion at the Library of Congress on the anniversary itself — and you can certainly count on a few retrospectives in this newspaper.