PowerHouse plays host to Iraqi artist Wafaa Bilal, Siberian photographer and writer Slava Mogutin, Eritrean writer-activist Dawit L. Petros and Filipina journalist Ninotchka Rosca, discussing Thomas Wolfe's maxim "You can't go home again" in a panel moderated by Nigerian-British filmmaker Zina Saro-Wiwa. Perhaps not the sunniest discussion for a hazy summer evening, but certainly enlightening and pertinent.