What if you lived in a coastal city never knowing that the ocean hid a deadly poison? That’s exactly what LA residents did for decades, until a scientist alerted LA Times journalist Rosanna Xia to a problem ignored by officials for years. They discover that as many as half a million barrels of DDT waste had been dumped into the ocean, and are finally able to connect the dots between sick sea lions, a poisoned ecosystem, and the legacy of health issues in all who’ve been exposed.