Leo suggests OpenVPN.net, which is a service that will let Ken privately tunnel into OpenVPN's servers securely so he could have that US IP address.
However, a static IP address isn't guaranteed and that's an issue for Ken. VPNs tend to change the IP from time to time for privacy. Amazon has an EC2 (elastic computing) option which would give him a static IP. Microsoft's Azure will do the same. Rackspace's Cloud Server is another possibility.