Earlier quoted context omitted.
It wasn't simply tapping phones, it is the warrantless collection of close to all global electronic communications. And the immorality doesn't stop there, that's where it starts. "We kill people based on metadata." - General Michael Hayden, former Director of the NSA, former Principal Deputy Director of National Intelligence, and former Director of the CIA. This includes innocent people. Women, children, civilians. D…
If you're in a war of attrition (like the the US was in Afghanistan), and the other side already has agreed it's okay to kill innocents (9/11), then you're not going to win by fighting an "ethical" war -- whatever that means. I'm not going to defend the CIA/NSA for actions taken inside the country. On the other hand, I'm not going to second guess decisions happening on the ground in an active war zone.
By not fighting ethically abroad and by permitting our authoritarians largely free-rein both abroad and domestically, we gave the folks who planned and caused the destruction of the WTC towers nearly everything they were hoping for.
Overreacting and letting Bush II run his military campaigns in the Middle East was one of the greatest gifts we could have given Al Qaeda and those like them. Encouraging our populace to permit themselves to be (and continue to be) terrorized is a lesser but still significant gift to those same organizations.