Like proverbial "women!" we all change our minds.  Our minds are, in fact, changing constantly.  This is basic Buddhism, to understand that the thoughts that race through our minds are not "us."  Which puts us in an odd position.  Good news--we can deal with it.

And this is why it's better not to do things which are undoable.  Like terrorism, blowing someone up, that someone a person who will never come back.

The children's history book gives us that moment, of American Revolution in the name of great freedom and democracy, Paul Revere, riding on a horse at night, warning everyone, mustering the forces, "the British are coming, the British are coming."  The British are coming to do things which cannot be undone, willfully, with weapons and soldiers, antagonistic force motivated by economic concerns.  We rebelled against that.

No one, however, warned us, when Dick Cheney was coming, to start wars in the name of Haliburton profits, to coerce the legislation of the Clean Water Act to stipulate that the chemical formulas and poisons behind fracking would never be made public.  No one warned us when Glass Steagall was repealed, to clear the way for deregulated speculation and profiteering.  No one warned us when NAFTA was passed, shipping jobs overseas.  No one warned us when Ronald Reagan was coming.  No one warned us when poverty and lack of jobs led people to participate in underground economies, when those actions carried prison sentences far beyond justice.  No one warned us when we handed over the ecological health of great natural seas and bodies of water to BP.