"A woman holds a banner that reads in Spanish; ""Down with the Chevron- YPF agreement,"" during a protest in Buenos Aires, Argentina, Wednesday, May 21, 2014. Demonstrators gathered to protest against a joint venture between YPF and Chevron to use hydraulic fracturing or ""fracking"" at a major shale oil and gas deposit known as ""Vaca Muerta."" (AP Photo/Natacha Pisarenko)"
{}