I was watching the previews for the new CBS show "The Unit". And it got me wondering if their are groups that really do this stuff or is it just Hollywood? I mean I have heard of ops teams that do recon for bombing missions..But, I am talking about bigger things.. You see shows like the Unit or movies where some agent stops a bomb going off in a city. And I always wondered (and even hoped) their are groups or agents that are competent and doing the job. And I am sure if they did do something...we would all never know.