(VOVworld) - Under fire about the spy program of the National Security Agency (NSA), Lisa Monaco, Obama’s homeland security and counter-terrorism adviser has calmed people saying that what the NSA is doing is legal.

Lisa Monaco, Obama’s homeland security and counterterrorism adviser

However she admitted that the leaking of classified documents has posed many serious threats to the relationship between the US and its allies. In an article posted on “USA Today”, Monaco said that the US intelligence are doing the same thing as other countries’ intelligence; however she did not admit any shortcomings.

British Prime Minister David Cameron has accused U.S. whistle-blower Edward Snowden and unnamed newspapers of assisting Britain's enemies by helping them avoid surveillance by its intelligence services. He said that the classified information which Snowden leaked would make it harder for Britain and other countries to keep its citizens safe from people who wanted to "blow up" families.

In related news, German intelligence said they would hold talks with the US about the allegations the NSA bugged Angela Merkel's phone. Spanish Prime Minister Mariano Rajoy said on Friday he would summon the US ambassador to Madrid to explain reports of American spying on the country. Spanish media reported the NSA was spying on some of its government members and politicians including former Prime Minister Rodriguez Zapatero.