A week ago, the Guadalupe River in Texas overflowed its banks and swept away dozens of campers. It turns out that this is not the first time it's done so - and not the first time some of those campers didn't survive.

Videos:

• "Rescue 911" segment on the tragedy

• Señor Onion’s Archives: Guadalupe Flood of 1987

• Sheriff recounts tragic Comfort, TX flood

• The Flood: Who Will Save Our Children?

Articles and books:

• Toll At 8 In Texas Flooding 2 Young Campers Are Still Missing

• Almost 40 years ago, 10 children died in a Comfort flood that shook Texas

(Podcaster's note: The second part of the Cutter incident episode is forthcoming; I'm just trying to get it juuuuuust right. :))

November 7th, 2018, was just supposed to be another fun night of drinking and line dancing at the Borderline Bar and Grill in Thousand Oaks, CA. But at 11:18 PM, all of that ended in an instant.

Videos:

• TikTok: shannon_mcgee visiting the site 1.5 years later

• TikTok: Official account of @borderlinebar

• RAW VIDEO: Thousand Oaks gunman seen shooting inside Borderline Bar & Grill | ABC7

• Thousand Oaks shooting survivor: "My friend killed my other friends"

• Co-Owner Of Borderline Bar And Grill Accused Of Embezzling $43K

• Ventura County DA Releases New Video Of Borderline Bar Shooting

• Columbine Survivor Survives Virginia Tech

Articles and books:

• Must Reads: Friends took this photo at their favorite bar in Thousand Oaks. Minutes later, the shooting started

• CHP officer’s bullet killed sheriff’s deputy who responded to Thousand Oaks bar shooting

• Authorities Describe 'Confusion And Chaos' At Borderline Bar Shooting In California

• What Thousand Oaks shooting suspect posted to social media during massacre

• Here Are the Victims of the Thousand Oaks Shooting

• First Responder Was Killed in Restaurant Mass Shooting at Same Place Where He Proposed to His Wife

• Borderline shooting hero Matt Wennerstrom honored at Thousand Oaks memorial after motorcycle crash

• The Americans who have lived through multiple mass shootings

It would start with a headache, a fever, maybe a funny tummy. But soon enough your knee would give out, or your arm would hang limp, or you would struggle to breathe. You'd be taken to the hospital, where you'd get your diagnosis - polio. If you survived, you ran the risk of doing so with paralyzed limbs, struggling to walk on bulky leg braces. Your parents would be terrified they might lose you, and so everybody wanted the one thing that could stop all of this - a vaccine.

Videos:

• New England Journal of Medicine: The Cutter Incident, 50 Years Later

• American Experience: The Polio Crusade

• The Iron Lung and Polio by M.Rockoff | OPENPediatrics

Articles and books:

• Polio: An American Story, by David M. Oshinsky

• The Cutter Incident, by Dr. Paul Offit

• NEJM: The Cutter Incident