Those in the business of counter-terror training classes, and the officials who enroll both military and law enforcement alike, credit these programs with enhancing teamwork with other agencies and teaching tactical procedures that can be used on the job. However, with funding for counter-terrorist training becoming harder to obtain, law enforcement agencies are becoming creative. Security Solutions International (SSI) (headquartered in Miami, FL), offers a variety of seminars and courses dealing specifically with homeland security. SSI places a great deal of emphasis on examining case studies in addition to practicing hands-on-training. The Counter Terror Training Unit (CTTU) at Columbus State Community College in Columbus, OH trains law enforcement and military personnel in emergency aircraft, bus and train assault, bomb interdiction and detection, drug interdiction and detection, and regional airport emergency interdiction training utilizing a Boeing 727 aircraft. The most significant advantage of programs like SSI and CTTU are that they teach agencies to function as a team.