It was the card I used for business travel and I had been in Detroit earlier in the month. There was also over $5,000 in gift cards to Home Depot on the same bill.

Amex caught both charges and removed them immediately. Amex has the best fraud detection in my opinion. From time to time they ver the years I would get calls from them asking about suspicious charges or charges from foreign countries to make sure they were legit. I never mind those kinds of calls