I am confused. What are the relevant US laws that allow banks to freeze accounts? Does Citi's accountholder agreement make provisions for such a freeze? If,

I am confused. What are the relevant US laws that allow banks to freeze accounts? Does Citi's accountholder agreement make provisions for such a freeze? If, as some here have conjectured, the issue was with an attached merchant account, why not just cut off the ability to accept plastic? If AdultFriendFinder can exist and take credit cards, then there must not be any [Edit: at least sex-related] business "content"-based laws which allow freezing assets.