It’s the moment we’ve been eagerly awaiting: Memorial Day weekend has arrived. Besides the observances, parades and barbecues, for so many of us, that annual trek to Jones Beach to watch the action overhead during the Bethpage Air Show is a beloved tradition not to be missed. This year’s extravaganza, on Saturday and Sunday, May 27-28, is helmed once again by the U.S. Air Force Thunderbirds.