Terrorists can get access of a U.S. SIM card and use it for communication, when someone sees the number, they will think its a U.S. number. I mean, it adds another layer of difficulty in tracing it back to the user. May be I am wrong.
Assuming the telcos are on the hook for the US govt, it probably narrows things down a whole lot more when a US sim connects to a tower in the Philippines
reply