Photographer John Moore, whose viral image of a weeping two-year-old girl at the US border has become a potent symbol of the outrage over Trump's controversial "zero tolerance" policy, including family separations, knew what he had captured was "important". What he could not guess, however, was how great an impact his picture would have on the debate as it was published around the globe. Moore, a veteran Getty Images photographer, who has spent a decade documenting immigration and US border issues, had been accompanying a patrol along the Rio Grande Valley. "I was on a ride-along with the US Border Patrol in McAllen, Texas, last week; he told the Guardian, "[It's] in the Rio Grande Valley, the most heavily trafficked part of the entire US-Mexico border for undocumented immigration. I was with them from afternoon into evening: Over the years. Moore had become familiar with both the routes over this border and the way different people reacted: how those who crossed individually, usually men, would run and try to hide from the border patrols. Many families, tired from their often weeks-long journey, would seek to surrender almost immediately to the officers whom they encountered. "As a photojournalist covering this story for years, and as the father of three children, including a toddler, it was personally very hard for me to photograph; he says.

Photographer John Moore, whose viral image of a weeping two-year-old girl at the US border has become a potent symbol of the outrage over Trump's controversial "zero tolerance" policy, including family separations, knew what he had captured was "important". What he could not guess, however, was how great an impact his picture would have on the debate as it was published around the globe. Moore, a veteran Getty Images photographer, who has spent a decade documenting immigration and US border issues, had been accompanying a patrol along the Rio Grande Valley. "I was on a ride-along with the US Border Patrol in McAllen, Texas, last week; he told the Guardian, "[It's] in the Rio Grande Valley, the most heavily trafficked part of the entire US-Mexico border for undocumented immigration. I was with them from afternoon into evening: Over the years. Moore had become familiar with both the routes over this border and the way different people reacted: how those who crossed individually, usually men, would run and try to hide from the border patrols. Many families, tired from their often weeks-long journey, would seek to surrender almost immediately to the officers whom they encountered. "As a photojournalist covering this story for years, and as the father of three children, including a toddler, it was personally very hard for me to photograph; he says.