La Roca restaurant in Nogales, Mexico, draws a mix of American tourists and locals. It used to have an American bank account and credit card until the bank closed the account. Jude Joffe-Block/KJZZ hide caption

itoggle caption Jude Joffe-Block/KJZZ

Pablo Cote holds a photo of his deceased father of the same name in July 2013 in Tlaxcala, Mexico. Cote was kidnapped while driving back from the U.S. border to the east-central state of Tlaxcala. He was beaten to death, part of the mass killing of 193 bus passengers and other travelers by the Zetas. Ivan Pierre Aguirre/AP hide caption

itoggle caption Ivan Pierre Aguirre/AP

Relatives of 43 students who went missing in Iguala, Mexico, search for them on a hill on the outskirts of town on Nov. 29. After the students vanished, searches around Iguala have turned up nearly a dozen clandestine graves. None of the remains found in those mounds belonged to the students. Eduardo Verdugo/AP hide caption

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Maria Isabel de la Paz, a U.S. citizen, was twice turned away when trying to enter the U.S. legally. When she attempted an illegal crossing, her case was decided by a Border Patrol agent, not an immigration judge. John Burnett/NPR hide caption

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Natividad de la Cruz Bartolo shows a picture of her son, Emiliano, one of 43 university students who went missing months ago. Carrie Kahn/NPR hide caption

itoggle caption Carrie Kahn/NPR

A woman walks toward the international crossing gate in Nogales, Ariz., in March 2013. Jahi Chikwendiu/Washington Post via Getty Images hide caption

itoggle caption Jahi Chikwendiu/Washington Post via Getty Images

Nabor, a small-scale marijuana grower in the northwestern Mexican state of Sinoloa, checks his plants. As legal pot increasingly becomes available in the U.S., Americans appear to be buying more that is grown domestically. Prices for marijuana from Mexico have fallen sharply. John Burnett/NPR hide caption

itoggle caption John Burnett/NPR

Mexico's Attorney General Jesus Murillo Karam addresses a news conference in Mexico City on Friday. He announced the arrest of three suspects in the brutal slaying of 43 students in the country's south. Mario Guzman/EPA/Landov hide caption

itoggle caption Mario Guzman/EPA/Landov

Dubbed the "imperial couple" by a Mexican newspaper, the mayor of Iguala, Jose Luis Abarca, and his wife Maria de los Angeles Pineda were wanted for questioning in the case of the missing students and the mass graves found near Iguala. They are shown here in a photo taken in May. Alejandrino Gonzalez/AP hide caption

itoggle caption Alejandrino Gonzalez/AP

Jill Tahmooressi stands outside the Mexican Consulate in Miami, in May to protest the arrest of her son in Mexico. He was released by a federal judge in Mexico today. J Pat Carter/AP hide caption

itoggle caption J Pat Carter/AP

Three large crosses lean against the burned out facade of Iguala's City Hall. Masked protesters angry about the disappearance of 43 students — attacked on orders of Iguala's mayor, according to Mexican federal authorities — burned the building last week. Carrie Kahn/NPR hide caption

itoggle caption Carrie Kahn/NPR

Elaborately decorated skulls are crafted from pure sugar and given to friends as gifts. The colorful designs represent the vitality of life and individual personality. Karen Castillo Farfán /NPR hide caption

itoggle caption Karen Castillo Farfán /NPR

In Mexico City on Wednesday, people march to demand justice for 43 missing students. Mexican authorities ordered the arrest of the mayor of Iguala and his wife in connection with the attack. Yuri Cortez/AFP/Getty Images hide caption

itoggle caption Yuri Cortez/AFP/Getty Images

Students chant slogans in front of the Attorney General Office in Mexico City on Wednesday during a protest over the 43 students missing in Iguala, Guerrero State. Omar Torres/AFP/Getty Images hide caption

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