The John D. and Catherine T. MacArthur Foundation has announced its list of 21 “Genius Grant” winners for 2014. Among the grantees are filmmaker Joshua Oppenheimer, who made the Oscar-nominated documentary, “The Act of Killing,” about U.S.-backed death squad leaders in Indonesia, and Ai-Jen Poo, director of the National Domestic Workers Alliance. Other winners include cartoonist Alison Bechdel, Jonathan Rapping, founder of a program to train public defenders in the South, and Sarah Deer, a professor and advocate for Native American women facing domestic violence and sexual abuse. The winners will receive $625,000 to spend however they choose.