From KPBS and PRX, “Port of Entry” tells personal stories, stories of love, hope, struggle and survival, from fronterizas and fronterizos and other people whose lives are shaped by the wall. Despite the pandemic and travel restrictions, people are still crossing into Tijuana for medical procedures and medications. They’re looking to save money on everything from discount dental work and weight-loss surgery to more affordable insulin. People like Liz Salcido, who has Type 2 diabetes. She needs insulin daily, just to survive. But sometimes, when money is tight, she’s had to ration the life-saving drug. In this episode of “Port of Entry,” we follow Salcido and another San Diego woman who went on a journey to find more affordable insulin across the border in Tijuana.