`  *** Yeah, agreed. That's why I thanked you. But when looking at the change of ``surround`` to ``surrounds``, I at first didn't understand why you changed that. Looking at web sites I realised the different British/U.S. usage. Possibly in British English either ``surround`` or ``surrounds`` is okay, depending on whether the gang is regarded as a unit (``It surrounds``) or individuals acting together (``They surround``). In U.S. English it looks like ``surrounds`` is the only option. Regards,  `