Photos: Rolling Thunder ‘Ride for Freedom’

A military helicopter flies over a police escort on the Memorial Bridge, for motorcyclists riding in the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Motorcyclists participate in the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Three men watching motorcyclists, use cardboard boxes as umbrellas while it rains on the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

A motorcyclist in front of the Lincoln Memorial, waves to riders as they participate in the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Supporters line the street as motorcyclists participate in the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Motorcyclists pass Marine Staff Sgt. Tim Chambers, Ret., and Christian Jacobs, 6, of Hertford, N.C., as they salute during the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Jacobs father, Marine Sgt. Christopher Jacobs, was killed while serving in 2011. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Motorcyclists pass the Lincoln Memorial during the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

Motorcyclists cross the Memorial Bridge during the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

A pair of military boots are left at the Vietnam Veterans Memorial during the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen

A motorcyclists transfer a name of a deceased soldier at the Vietnam Veterans Memorial during the 30th anniversary of the Rolling Thunder ‘Ride for Freedom’ demonstration in Washington, Sunday, May 28, 2017. Rolling Thunder seeks to bring full accountability for all U.S. prisoners of war and missing in action (POW/MIA) soldiers. (AP Photo/Cliff Owen)

AP Photo/Cliff Owen