Many people observe this holiday by visiting cemeteries and memorials. A national moment of remembrance takes place at 9 p.m. US Eastern time. Another tradition is to fly the U.S. flag at half-staff from dawn until noon local time. Volunteers place an American flag upon each gravesite located in a National Cemetery. The U.S. Air Force's "101 Critical Days of Summer" begin on this day as well. Some Americans use Memorial Day to also honor any family members who have died, not just servicemen. In addition to remembrance, Memorial Day is also a time for picnics, barbecues, family...