the new Barclays AAdvantage Aviator mastercards that are being sent out to replace the old US Airways Dividend Miles cards are true chip + PIN...this is one of the very few chip + PIN cards available in the US that i am aware of...(most new cards in the US are chip + signature)...and the Red and Silver cards do not charge foreign transaction fees...only downside is the yearly fee after the first free year, unlike the PenFed Platinum Rewards card that is also chip + PIN but has no yearly fee (or forex fees)
chip + PIN can be useful in some situations on some Caribbean islands like St. Martin or St. Barth where unmanned credit card machines require a chip and PIN to make a payment...(i personally had to use a chip + PIN when getting gas after hours at a gas station on St. Barth)...but realistically these cards would be much more useful when traveling in Europe, like for unmanned metro ticket kiosks, gas stations, and toll booths