Naomi Klein, Michelle Alexander and Hisham Matar are among dozens of writers who have signed an open letter to PEN America this week saying they would boycott this year’s PEN World Voices Festival due to the an “inadequate response” to the genocide in Gaza. The PEN World Voices Festival of International Literature is an annual week-long literary festival in New York City and Los Angeles that showcases international literature and new writers. The festival is produced by PEN America, a nonprofit organisation working to advance literature, promote free expression, and foster international litera…