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A surge of Central and South American migrants - estimated at around 6,000 people - is now heading toward the US border. This could be the largest single migrant push in more than a year, as they began their trek over the weekend. Senior US and Mexican officials are set to meet on Wednesday to discuss the crisis. But, as Andy Roesgen reports, the situation at the US Southern border has never been more harrowing. Subscribe: Livestream: Facebook: Twitter: Instagram: Visit our website:
