Federal immigration officers are being pulled back from one of their signature enforcement tools. Multiple law-enforcement sources told CBS News that Immigration and Customs Enforcement quietly instructed agents this week to stop initiating most vehicle stops across the country. CNN confirmed the same shift through an independent source, calling it a major reversal in recent tactics. The change follows the deaths of two men killed by agents during traffic stops within the same nine-day stretch — one in Houston, the other in a small coastal city in Maine.