January 15, 2015 7:45 pm Data Throttling Could Slow Smartphones Data “throttling” could be slowing down your smartphone streaming and downloads. Consumer Investigator Randy Mac reports for the NBC4 News at 5 and 6 p.m. on Thursday, Jan. 15, 2015. US & World Videos 1:42 Shooting investigation at DTLA warehouse 3:20 Encampment remains on USC 1:39 Bicyclist killed in hit-and-run 3:43 Despite encampment's clearing, safety concerns linger at UCLA 4:09 Parents speak out after son's beating at LA juvenile hall