I don't believe it was an inside job. That being said, I'm open to hearing theories that state otherwise.
As any normal person should be. It's so funny to me how that small group that shits all over anything that talks about 9/11 Truth is so eager to suppress any talk of controlled demolition in the towers. They don't have to read the threads but yet they do and try as hard as they can to make it seem like a kooky idea when over 1400 Architects and Engineers for 9/11 Truth also bring this evidence as well as victims family members.
Reference:
http://www.ae911truth.org
http://www.buildingwhat.org