Invasion of Privacy of Right of the Government?

In "Invasion of Privacy or Right of the Government?", a classmates blog, talks about how the United States Government admitted to conducting wiretapping on its' citizens in America. The government was really conducting warrant-less wiretapping to prevent terroristic and dangerous threats, and to listen in on suspicious individuals. But in all reality, conducting wiretapping without a warrant is against the law, and definitely an invasion of our privacy as United States citizens. Warrant-less Wiretapping does not follow the lines of the Fourth Amendment. The Fourth Amendment stats: "The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized." The government should not be allowed the right to do conduct these wiretappings without a warrant. We as citizens are protected from events such as these to occur because of the Fourth Amendment, so why should the government be able to have the right to conduct these wiretappings without a warrant since it is clearly stated unconstitutional?