Updated at 1:25 p.m. ET
Given Facebook's track record of broken promises over privacy, U.S. senators said Tuesday that the social media giant can't be trusted when it comes to plans to launch a digital currency.
"Facebook is dangerous," Sen. Sherrod Brown, D-Ohio, said at a Senate Banking Committee hearing. "Like a toddler who's gotten his hands on a book of matches, Facebook has burned down the house over and over, and called every arson a learning experience."