Federal and White House-led initiatives are rolling out overlapping programming for the semiquincentennial, including National Mall events, court open houses and nationwide commissions that will shape how the 250th anniversary is marked.

Who is sponsoring which event might make all the difference in whether it is an activity you want to attend.

WASHINGTON (AP) — Federal law enforcement authorities are preparing for one of Washington, D.C.'s, largest and most complex security operations as the nation’s capital gears up to…