President Obama has ordered the US Justice Department review the policy under which it obtains journalists' records.
The move comes after the administration was criticised for secretly seizing two months of phone records from The Associated Press and reading the e-mail of a Fox News reporter as part of separate investigations about the publication of government secrets.
Obama re-stated his support for a media shield law that he said would "guard against government overreach." Such a law would require a federal judge to sign off before officials could access the records of journalists. Mr Obama said:
Journalists should not be at legal risk for doing their jobs. Our focus must be on those who break the law.
More top news
George Osborne's fiscal rules leave him little room for error as he tries to balance the books, the Institute for Fiscal Studies says.
Dillon, a happy, healthy eight-year-old from Coventry, has microcephaly. His mother Sarah writes what it's like to deal with the condition.
An industry has grown up around the Fab Four's legacy that supports 2,335 jobs and has potential for further growth.