WTC 7

Listen carefully for the explosion at the 11 second mark.
It is clearly before the penthouse collapses at the top of the building.
All other videos do not show the penthouse collapse.

Another trick lately is to show WTC building 5 damage and claim it is building 7.

Why is it important to understand 9-11 was an inside job?

Because without the basic understanding of this simple truth you will never understand who your sworn enemy really is. The simple reality is they know all about you.
They read your emails, listen to your phone calls, copy your text messages, hell they know you better than you know yourself.

Soon you will be able to understand the real reason for the department of homeland security.

If you do not awaken to these simple truths when you finally do open your eyes it will be too late.