A snack vendor takes advantage of a break in traffic to push his cart across a highway, where dozens of truck drivers angry over an increase in gas prices had parked their vehicles, put up signs, and were waved motorists through toll booths without paying, at the Palmillas toll plaza, 102 kilometers outside Mexico City on the highway to Queretaro, Tuesday, January 3, 2017. (Photo by Rebecca Blackwell/AP Photo)
