Lab-made drugs soaked into the pages of letters, books and even legal documents are being smuggled behind bars, killing inmates and frustrating investigators.
The Trump administration has been trying to choke the Cuban government through an oil blockade. The prisoner release appears to be an effort to appease Washington.
After a prisoner arrived at a hospital with broken ribs and a torn rectum, Israelis were once again at odds over the issue of mistreatment and impunity.
James Luckey-Lange, 28, wrote about kindness and shared humanity as he traveled. But he said he had been shackled, starved and beaten in Venezuela after being detained.