May 21, 2015 7:25 pm Home Construction Insurance Scams Part of Underground Economy Builders and contractors who don’t follow the law is part of a multi-billion dollar underground economy. Mekahlo Medina reports for the NBC4 News at 5 p.m. on Thursday, May 21, 2015. US & World Videos 3:43 Despite encampment's clearing, safety concerns linger at UCLA 4:09 Parents speak out after son's beating at LA juvenile hall 3:30 How Los Angeles officials are responding to UCLA campus chaos 2:47 The LA County Fair kicks of 2024 season in Pomona 3:09 USC updates graduation plans as protest continues