. >> 11 years after establishing a refuge for international writers called city of asylum henry reese is thinking expanding. >> these walls will come out. >> a restaurant, book shop will be built here. they will soon have a new cultural center. a few blocks away houses that have become landmarks after the first writer to seek refuge here. he would write his poetry on the walls. the murals have multiplied. >> this man has spent time in jail because of characters he wrote about in his novel. he then fled to the u.s. >> i write about problems in iran. i hate writing about terrorism. >> there is irony for his complaint. he comes at a time when u.s. forces say they feel the opposite pressure the writer's advocacy group penned over 520 american writers 85% were worried about u.s. government surveillance. one in six of fiction and non-fiction writers avoided writing or speaking about particular topics because they thought it would bring surveillance. charles shield was so concerned he abandoned his research on the cold war. >> i began looking at the civil defense. in terms of googling words