The FBI HRT does not have overseas missions. There are far too many other similar units, both military and civilian who carry out mission of that type on a regular basis. SEALS, Delta Force, CIA and Department of State all have members who are trained as well or better than the HRT for the same type of mission, and they are able to operate overseas without violating legal and diplomatic mandates. As the one guy said, HRT members might be involved in training Iraqi or Afghan security forces, but I doubt it, since both government agencies and civilian contractors all have people who are trained in identical mission tactics and strategies. While HRT is very, very good at what they do, they aren't he only people who can perform that mission. As I noted, US military and civilian agencies are capable of the same things, as are Mosad, SAS etc.