Roughly one in three Americans say the former security contractor who leaked details of top-secret U.S. surveillance activity is a patriot and should not be prosecuted, according to a Reuters/Ipsos poll released on Wednesday.

Some 23 percent of those surveyed said former National Security Agency contractor Edward Snowden is a traitor while 31 percent said he is a patriot. Another 46 percent said they did not know.

Snowden, 29, revealed last week that the NSA is monitoring a wide swath of telephone and Internet activity as part of its counterterrorism efforts.