Maryland becomes the first US state to ban surveillance pricing in grocery stores, as other states including CO, CA, MA, IL, and NJ consider similar bills (Sanya Mansoor/The Guardian)

Sanya Mansoor / The Guardian: Maryland becomes the first US state to ban surveillance pricing in grocery stores, as other states including CO, CA, MA, IL, and NJ consider similar bills — Critics say Maryland's new law banning rapidly change product costs based on consumer data is full of carveouts