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.
Vietnam wasn't self-defense. Korean war wasn't self-defense. CIA-instigated Color revolutions and Euromaidan weren't self-defense. Kosovo wasn't self-defense. Launching a cruise missile (a precision weapon that requires the operator to enter precise geographic coordinates prior to launch) at the Chinese embassy in Belgrade wasn't self-defense.
A vast and overwhelming majority of the military operations the post-WW2 USA conducts overseas are not acts of self-defense, they are acts of imperialism.
"I want to grow the imperial empire's influence and footprint" is not justification for murdering unarmed civilians. Never has been, never will be.