Gällande att man tar med sitt gamla pass där visumet sitter, tillsammans med det nya , så är det inga problem ifall passet är "klippt" av Polisen?
Jag ställde samma fråga till amerikanska ambassaden och fick svaret nedan. Polisen klippte dock inte mitt gamla pass när jag förnyade senast.
"Kindly note that we are able to confrm that if your visa is still valid you can travel to the United States with your two passports (old and new), as long as the visa is valid, not damaged, and is the appropriate type of visa required for your principal purpose of travel. (Example: tourist visa, when your principal purpose of travel is tourism). Also, the name and other personal data should be the same in both passports. Your nationality, as indicated in the new passport, must be the same as that shown in the passport bearing the visa."