1) Facetime seems to be vulnerable to MITM wiretaps, but none of Google's services are transmitted in the clear anymore. Skype, afaik, is encrypted, as well.
2) Wikipedia says that "from 2003 to 2006 the bureau issued 192,499 national security letter requests". That's a long shot from the mass surveillance affecting "millions of Americans" (from this article), or the NSA having "a dossier on every citizen" (recently here, as well).
Each national security letter can request the records of thousands or even millions of customers. 200,000 requests can certainly encompass all Americans.
2) Wikipedia says that "from 2003 to 2006 the bureau issued 192,499 national security letter requests". That's a long shot from the mass surveillance affecting "millions of Americans" (from this article), or the NSA having "a dossier on every citizen" (recently here, as well).
3) Good point.