By BARBARA ORTUTAY and MATT O'BRIENBig Tech faced tough questions this week as federal lawmakers focused on issues of potentially anticompetitive behavior by technology giants and expressed bipartisan skepticism over Facebook's plan for a new digital currency. Companies such as Apple, Google, Facebook and Amazon have long enjoyed nearly unbridled growth and a mythic stature as once-scrappy startups — born in garages and a dorm room and a road trip across the United States — that grew up to dominate their rivals.Read more on NewsOK.com