This is an international media house. This means it is in the information sector since it own both radio and Television stations and they give news from all corners of the word. The US can access it using the digital technology and also through internet live stream. Visit http://www.aljazeera.com/.
Al Jazeera is, i believe, the Middle Eastern version of Fox or ABC, NBC, CBS, etc. A media conglomerated in the Middle East. Im not sure what you mean by the US having access to it but if you mean to control or manipulate it i doubt that seriously. Its owned generally by enemies of the US. There may be an American branch of it i suppose.