9/11 being an inside US gov't job is clearly obvious (see loose change) Why are americans afraid of the truth?

Strange how the 6 ton engines on each side made of titanium vaporized. The melting point of titanium is hotter than the fires were on 9/11. So the titanium didn't vaporize. Scientifically impossible, check the periodic table. Each engine was the size of two ford excursions piggy back. How could you not find 4 unmeltable titanium ford excursions (each side) inside a small building like the pentagon - especially when they found bodies? Oh yeah...and they found atta's pport (planted) outside wtc but not the titanium engines. Didn't atta turn up alive too with nine or so other hijackers who didn't do anything? Why don't americans piece this together buy now. America has a cancer. Its the Bush administration and their friends (both dems and reps). Expose them. Its patriotic. What are you afraid of? They burned you to death 3000 times over on 9/11 and lie to you every day on the tube. Americans should speak freely about our countrys misdeed on 9/11 in all school clrooms.