Before the Snowden file disclosures, Greenwald was widely considered one of the most influential opinion columnists in the United States. After working as a constitutional attorney for ten years, he began blogging on national security issues before becoming a "Salon" contributor in 2007 and then moving to "The Guardian" in 2012. He currently writes for and co-edits "The Intercept", which he founded in 2013 with Laura Poitras and Jeremy Scahill.