https://archive.is/2022.01.05-033953/https://www.bloomberg.com/opinion/articles/2022-01-05/one-reason-for-rising-food-prices-chinese-hoarding
https://archive.is/2022.01.05-033953/https://www.bloomberg.com/opinion/articles/2022-01-05/one-reason-for-rising-food-prices-chinese-hoarding
They do and they don't. It only holds cash at the moment, and I don't think there are any other 'grain reserves' in the US right now