A new credit card chip technology known as EMV (Europay, MasterCard, and Visa), meant to protect against data hacks has been introduced in the US. This has resulted in longer lines at checkouts because consumers are adapting to the change.
These cards have been used in Europe for many years, and involves putting the card in a slot instead of swiping. Cashiers say the new process can take 30 seconds to a minute longer. Customers are complaining about this new process because as opposed to just swiping and showing ID, they now have to wait for the card to load and input information. Some grocery stores have added additional check out lanes while customers get used to the new cards.
On October 1st, credit card industry shifted liability for fraudulent charges to retailers. So these new cards are here go stay because retailers are quick to adapt to new, more secure technology.