Gustavo Sierra is a journalist and writer with 40 years of global experience. He has served as a war correspondent, multimedia pioneer, and special correspondent for Clarín, CNN, Univision, Telemundo, NBC News Channel, Telenoticias, and Infobae. His extensive coverage includes the wars in Afghanistan, Iraq, and Ukraine, entry into the Guantanamo prison camp, tracing Osama bin Laden along the AfghanPakistani border, White House accreditation, reporting on the Mexican narcowar, and detailing the 2008 Wall Street collapse.