PBS NewsHour just aired this 3-minute Brief but Spectacular episode in which Los Angeles Times staff photographer Marcus Yam talks about the challenge of documenting tragedy and humanity up close. Yam has won two Pulitzer Prizes already in his career: one as part of the Los Angeles Times‘ staff in covering the San Bernardino, California, terrorist attacks in 2015 and one as part of the Seattle Times staff in covering the landslide in Oso, Washington, in 2014. In recent years,…