text:  And from the Doris Duke Foundation. This is All Things Considered from NPR News. I'm Ari Shapiro. And I'm Juana Summers. Sixty years ago today, President Lyndon B. Johnson strode into the East Room of the White House. And seated at a table surrounded by lawmakers and civil rights leaders like Martin Luther King Jr., Johnson signed the Civil Rights Act of 1964 into law. This Civil Rights Act is a challenge to all of us.