GOP lawmaker asks GAO to review overclassification

Hunter said that he wants the GAO to look at the degree to which material is classified that doesn’t impact national security, whether reducing classification requirements would winnow down the 5 million people who current have security clearances and the degree to which excessive classification harms information sharing.

The government’s classification system is just one area receiving renewed scrutiny from lawmakers in the wake of the NSA disclosures.

Senate Appropriations Committee Chairwoman Barbara MikulskiBarbara Ann MikulskiDems ponder gender politics of 2020 nominee Robert Mueller's forgotten surveillance crime spree Clinton: White House slow-walking Russia sanctions MORE (D-Md.) last week said she is preparing to call hearings to look at how Snowden was able to access the top-secret data he leaked to The Guardian and The Washington Post.

Sens. Jon TesterJonathan (Jon) TesterWith vote against Brownback, Democrats abandon religious freedom Democrat Manchin: Pence attacks prove ‘they don't want bipartisanship’ in Trump admin Tester invited the Border Patrol Union’s president to the State of the Union. What does that say to Dreamers?   MORE (D-Mont.) and Claire McCaskillClaire Conner McCaskillMcCaskill welcomes ninth grandson in a row Dem group launches M ad buy to boost vulnerable senators Senate Dems block crackdown on sanctuary cities MORE (D-Mo.) are holding a joint Senate Homeland Security subcommittee hearing Thursday on agencies' vetting of government employees' and contractors' security clearances.

— This story was updated at 3:27 p.m.