" In 1999 the RAND Corporation published a report (the first and, so far, last of its kind) with a “conservative estimate” that more than 307 million tissue samples from more than 178 million people were stored in the United States alone. This number, the report said, was increasing by more than 20 million samples each year. The samples come from routine medical procedures, tests, operations, clinical trials, and research donations. They sit in lab freezers, on shelves, or in industrial vats of liquid nitrogen. They’re stored at military facilities, the FBI, and the National Institutes of Health. "

― Rebecca Skloot , The Immortal Life of Henrietta Lacks