Dave Davies

Copyright 2017 Fresh Air. To see more, visit Fresh Air.

TERRY GROSS, HOST:

Copyright 2017 Fresh Air. To see more, visit Fresh Air.

TERRY GROSS, HOST:

Decades before NFL player Colin Kaepernick took a knee during the national anthem to protest police treatment of African-Americans, boxer Muhammad Ali roiled white America with his 1967 resistance to the Vietnam War draft.

The boxer had converted to the Nation of Islam a few years earlier, and he explained his resistance to the war by saying, "I ain't got no quarrel with them Viet Cong."

After Marine Sgt. Thomas ("TJ") Brennan was hit by the blast from a rocket-propelled grenade in Afghanistan in 2010, he suffered a traumatic brain injury that left him unable to recall much of his immediate past — including, at times, the name of his own daughter.

"When I got blown up, it erased a lot of my memories," Brennan says.

On May 25, 1978, a package exploded at Northwestern University in Evanston, Ill., injuring a security guard. It was the first of a series of 16 bombings that would occur over the next 17 years, killing three people and injuring many others. The suspect in the case, a shadowy figure who frequently used the U.S. mail to send his homemade explosives, became known as the "Unabomber."

Copyright 2017 Fresh Air. To see more, visit Fresh Air.

DAVE DAVIES, HOST:

Tales from the American West are marked by heroism, romance and plenty of cruelty. Among those stories, the saga of the Donner Party stands alone — a band of pioneers set out in covered wagons for California, and eventually, stranded, snowbound and starving, resorted to cannibalism.

A version of this story was published by NewsWorks.

When Donald Trump was in Manheim, Pa., recently, he urged his followers not just to vote but also to watch out for cheating at the state's polling places.

Pennsylvania's presidential primary is still a month away, but Republican campaigns are starting to focus on the state because it could prove to be a vital store of delegates for the three remaining candidates.

Donald Trump has a narrow path to clinch the 1,237 delegates needed to secure the GOP nomination. Rivals Ted Cruz and John Kasich are now primarily focused on scoring enough delegates of their own to deny Trump a majority of delegates on the first ballot at this summer's Republican National Convention in Cleveland.

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