The Promise of Plasma – Until new drugs are found to treat COVID-19, one of the more effective treatments has been plasma therapy. Bill Whitaker reports on how doctors are taking the blood plasma of COVID-19 survivors, and the virus-fighting antibodies in it, to create the life-saving therapy.
Spilling Across the Border – Lesley Stahl reports on raw sewage that is entering Southern California's coastal lands and waters from Tijuana, Mexico, just over the border.
Perseverance – In the most ambitious Mars rover mission yet, NASA hopes to launch Perseverance this summer to find evidence of ancient life on the "Red Planet." Anderson Cooper reports.
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A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.