- AT&T and Verizon are again being investigated for collusion. Here’s what happened the first time.Washington Post
- Justice Department Probes US Wireless Carriers’ Work on SIM Card AlternativeWall Street Journal
- US said to investigate AT&T, Verizon over wireless collusion claim: sourceReuters
- US Investigating AT&T and Verizon Over Wireless Collusion ClaimNew York Times