• Mariano Castillo is a writer and weekend supervising editor for CNN Digital, alternating roles that see him covering national and international news or overseeing the day's assignments.

    Mariano joined CNN in 2009 as a digital journalist embedded with CNN en Español, leveraging that network's resources in Latin America to produce reporting to be used by CNN's English-language networks.

    Based in Atlanta, Mariano has covered the 2009 coup in Honduras, the rescue of the Chilean miners, and the genocide trial of former Guatemalan dictator Efrain Rios Montt.

    Prior to CNN, Mariano was a correspondent for the San Antonio Express-News based along the U.S.-Mexico border, first in the Rio Grande Valley and later Laredo.

    Foreign Policy magazine has twice included Mariano in its annual "Twitterati 100," a list of top people to follow on global affairs. He is also part of the community of Soros Fellows.

    Mariano studied at Columbia's School of International and Public Affairs, but you're more likely to see him wearing the colors of his other alma mater, Texas A&M.