I have to agree with cosmo that the title is misleading. The story doesn't support the idea that reporters' phones were tapped or that what the government did was illegal. It was unprecedented though.
If it weren't for the fact that the White House has no problem leaking classified info when it's politically expedient, I might be more sympathetic with an effort to unmask leakers. But even then, I'm not sure a broad sweep of phone records is justified, even if it turns out to be legal.
“The American people are tired of liars and people who pretend to be something they’re not.” - Hillary Clinton