History Juneteenth: "Emancipation is a marker of progress for white Americans, not black ones." David Pescovitz
happy mutants WEB Du Bois's infographics on black life, from the 1900 Exposition Universelle Cory Doctorow
politics The failed presidential campaign of Ted Cruz is like the fight to end slavery, says Heidi Cruz Xeni Jardin
corruption America's mass incarceration of black people: the most important essay you'll read today Cory Doctorow
Culture Highlights from TED 2010, Thursday: "Shooting mosquitoes out of the sky with lasers" Mark Frauenfelder
RU Sirius interview about his new book, Counterculture Through the Ages: From Abraham to Acid House Mark Frauenfelder