HARTFORD >> FBI bosses retaliated against an agent for complaining about personnel decisions, managed by fear and were so dysfunctional that the bureau's director apologized to the Connecticut staff for problems with local leadership, according to a lawsuit filed Monday. The agent, Kurt Siuzdak, is a lawyer and 17-year veteran of the bureau who worked in New York City and as a legal attache in Iraq before joining the New Haven field office in 2009.