Help, travel gurus! I have read that CWD purchase is necessary for car rental unless one has a World MasterCard. However, I have obtained a letter from VISA saying I am eligible for coverage under the Auto Rental CDW benefit through my Chase Bank VISA card. The letter says, "Effective Nov. 1, 2013, the countries of Israel, Ireland, Northern Ireland and Jamaica are covered under this program." I have arranged to rent a car from Thrifty, which says in writing and on the phone that purchase of the CWD is optional. My question is, does anyone see any flaw in this plan? I would hate to get to Ireland and face unexpected fees. Thanks.