Earlier quoted context omitted.
"With only a bare majority of Americans opposed to U.S. government anti-terrorism surveillance," it's first and foremost a political one [1]. [1] http://www.people-press.org/2013/07/26/few-see-adequate-limi...
More specifically, a public opinion problem. Techies tend to think that the US government has gone rogue and is defying the people, who universally want to tone this stuff down. But really, the government is just responding to the will of the people here. Many Americans are terrified of terrorism and approve of these sorts of government efforts to fight it.
1. The current policies and attitude are [seemingly] going to have negative economic impacts of enormous proportions.
2. Surveillance will always be a cat and mouse game as technology improves, and surveillance will become increasingly difficult, perhaps impossible.