In fact, American "empire building" has been built on numerous kinds of terrorism.
In fact, the "War on Terror" was cover for state sponsored terrorism on the part of Bush and Co., and now Obama and Co.
Jesus once said that you can tell a tree by the fruit it bears. America has become the new Evil Empire.
* Lies about WMDs in order to attack a country which did not attack or in any way harm America. In fact, Iraq used to be an ally. Saddam Hussein asked our state department if they would mind that he would attack Kuwait in retaliation of their angle drilling into Iraqi oil fields. He took their ambiguous answer as tacit go-ahead.
* A mountain of strong, circumstantial evidence that the US government may have been behind 9/11 as a False Flag event (similar to the 1960s False Flag plan by the top military brass, "Operation Northwoods"). Murdering their own citizens to provoke outrage that could be used to direct legislation and foreign policy. (See: http://AE911Truth.org, for scientific and engineering evidence by scientists, engineers and architects.) The fact that Mayor Giuliani committed a felony by destroying crime scene evidence (WTC), and the fact that top military officers responsible for the massive security failures on 9/11 all received promotions instead of courts martial, strongly suggest that a massive cover-up was under way; this is far more than mere incompetence.
* More than a hundred thousand (millions?) of men, women and children have been murdered in Iraq by American and "allied" forces.
* Thousands of innocent Afghani's have died by American aggression.
* America attacked Libya which had done nothing to America. This was a clear case of unprovoked aggression.
* American and British forces have been caught repeatedly pretending to be enemy forces just to stir up trouble -- like 2 British SIS agents who were caught as agents provocateur and were illegally "rescued" by "allied" forces.
* Obama's kill list included Americans. So, instead of an attempt to arrest the individual for crimes, they take him out with innocents who happen to be close.
"Collateral damage" is a euphemism for "murder," just as "peace keeping action" is a euphemism for "war."
Just because America has the biggest guns and the most advanced technology, doesn't mean that their brand of murder is right. Several countries have taken legal steps to declare Bush and Obama "war criminals" for their illegal actions.