EXCLUSIVE: A book celebrating suicide bombers has been found in the Arizona desert just north of the U.S.- Mexican border, authorities tell Fox News. The book, "In Memory of Our Martyrs," was spotted Tuesday by a U.S. Border Patrol agent out of the Casa Grande substation who was patrolling a route known for smuggling illegal immigrants and drugs. Published in Iran, it consists of short biographies of Islamic suicide bombers and other Islamic militants who died carrying out attacks. According to internal U.S. Customs and Border Protection documents, "The book also includes letters from suicide attackers to their families, as...