David Guttenfelder has spent more than 20 years as a photojournalist and documentary photographer based in Nairobi, Abidjan, New Delhi, Jerusalem and Tokyo covering world events in nearly 100 countries. In 2011, he helped open a bureau in Pyongyang for the Associated Press, the first western news agency to have an office in North Korea. Guttenfelder has made nearly 40 trips to the otherwise-isolated country.