You need to pay more attention. The NSA's spying on Americans in the USA is absolutely contrary to the 4th amendment. What Snowden leaked shows much, much more than that.
For instance: spying on Russian politicians is part of what our national intelligence organizations are supposed to be doing, and Snowden revealing that Sweden and Norway have helped us to that is worse than unhelpful to every American, as well as being damaging to Sweden and Norway.
Further, his disclosures have shown what the tools and methods used to by the NSA to accomplish their legitimate role have damaged the NSA's ability to collect the intelligence they are charted to collect. Another example: The NSA had put some espionage "malware" onto computers used by the Russian Military, mexican drug cartels, and others (see http://www.nytimes.com/2014/01...) -- how was disclosing this information useful to anybody but our adversaries?
No apologies from me for the NSA. They broke the law with respect to the fourth amendment by illegally spying on Americans at home and they should answer for it. Clapper and Alexander lied to Congress and they should be made to answer for that.