At the US’s latest border hotspot, aid workers brace for volatility

As San Diego becomes the busiest arrivals sector along the US-Mexico border, organizers warn the election's immigration focus will bring more instability

Jacqueline Arellano is driving up and down the 15 freeway in southern San Diego county on a recent morning in mid-April, boxes of donated clothing and safety gloves in her trunk.

She stops in a Home Depot parking lot and hands a man the spare stroller she grabbed from her house. He'd mentioned to her earlier that day how tiring it was to move around the city with his toddler in his arms.