By CNN Staff
The House Intelligence Committee on Tuesday afternoon is questioning U.S. spy chiefs about accusations that the National Security Agency has tapped not only the phone calls of millions of Americans, but those of top U.S. allies.
Tuesday's hearing, billed as a discussion of potential changes to the Foreign Intelligence Surveillance Act, comes amid claims, reported last week by German magazine Der Spiegel, that the NSA monitored German Chancellor Angela Merkel's cell phone.
It's the latest in a series of spying allegations that stem from disclosures given to news organizations by Edward Snowden, the former NSA contractor who describes himself as a whistle-blower. Comments by President Barack Obama's administration claiming that he did not know of the practice until recently have drawn criticism from both the right and the left.FULL STORY