https://portside.org/2017-12-18/banks-pure-gold

'The inflated aluminum pricing is just one way that Wall Street is flexing its financial muscle and capitalizing on loosened federal regulations to sway a variety of commodities markets, according to financial records, regulatory documents and interviews with people involved in the activities.

'The maneuvering in markets for oil, wheat, cotton, coffee and more have brought billions in profits to investment banks like Goldman, JPMorgan Chase and Morgan Stanley, while forcing consumers to pay more every time they fill up a gas tank, flick on a light switch, open a beer or buy a cellphone...'