Factories, farms, & shops have been built for prisoners to work 24/7
At the textile workshop alone, inmates produce up to 600,000 garments monthly. They have made 188,000 medical-use garments, including uniforms, masks, and lab coats. They have also made 114,000 sports outfits, 18,000 uniforms for public school students, and more than 9,000 uniforms for the El Salvador military.
Watch below:

