Award-winning photo by Michael Mullady: a Peruvian man prepares to butcher a cow during fiesta week.
Award-winning photo by Michael Mullady: residents of La Oroya, Peru, mourn a young boy's death, believed to be caused by lead pollution.
Award-winning photo by Justin Maxon: a mother in Vietnam comforts her son who is crippled by Agent Orange poisoning, passed on to him from his father.
Award-winning photo by Justin Maxon: 10-year-old Ismael Gusman does a front flip from the top of his grandfather's truck in San Luis, Mexico.