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Revelations this week that the National Security Agency has been running an extensive domestic surveillance program involving companies like Google, Facebook and Apple has caused many Americans to ask what's left of their privacy. Guest host Tess Vigeland speaks with James Fallows, national correspondent with The Atlantic.

The Privacy and Civil Liberties Oversight Board is tasked with making sure that secret government surveillance programs aren't abused. It was created in 2004, but still doesn't even have a website or email.

In his most extensive comments so far on revelations about the electronic data that the nation's spy agencies are collecting, the president also said that the programs "help us prevent terrorist attacks." He said "modest encroachments on privacy" are being balanced against national security.

°µºÚ±¬ÁÏ reports have revealed the National Security Agency is data-mining Internet and social media companies including Microsoft, Apple, Facebook and Google. According to reports, the agency is also collecting Verizon phone records of millions of U.S. citizens. For more, Renee Montagne talks to Glenn Greenwald, the reporter who co-wrote the stories for the British newspaper The Guardian.

Striking a balance between national security and civil liberties is once again proving nearly as difficult a task as catching the bad guys.

Kelley alleges that the government violated her privacy by searching her private emails and disclosing information to the media. Kelley's complaints to the FBI sparked the investigation that eventually led to the resignation of CIA chief David Petraeus.

Facebook is expected to pay out $20 million in a settlement over its "Sponsored Stories" advertising service, after placing user images in personalized ads. But the settlement doesn't stop the service, and a legal expert says Facebook's option to let users opt out creates more problems.

From privacy concerns to technology saturation, Google's new technology has had its fair share of criticism — and it's not even on sale yet. The company wants to change those negative perceptions of its wearable computer before it goes on sale to the public.

Henrietta Lacks' family was never consulted before her genetic information was made public. Author Rebecca Skloot, who chronicled the story of her cells, says current regulations aren't covering the privacy questions that come up for people like the Lacks family.

In a 5-4 ruling, the court ruled that the Fourth Amendment protects a Florida homeowner who was arrested after the dog detected the odor of marijuana near his house.