The FBI will use all reasonable and lawful means to gather intelligence information.联邦调查局会使用各种合理合法的手段来搜集情报。Pay differentials are legal and appropriate if they are based on merit, seniority or any other factor than sex.如果工资级差建立在业绩、资历或其他非性别因素的基础上，那就是合理合法的。