Explore VOA's "The Damage Done" documentary series at https://projects.voanews.com/opioids/ Part 3, Episode 1: The Big Round-Up: A Philadelphia neighborhood lures addicts looking for the finest – and deadliest - dope to be found. Producers: Chris Simkins, Jeff Swicord, Jacquelyn De Phillips. Camera: Jeff Swicord, Chris Simkins, Marcus Harton.