http://www.washingtonpost.com/blogs/the-switch/wp/2018/04/20/att-and-verizon-are-under-federal-investigation-for-potential-collusion/ >The Department of Justice is investigating potential efforts by AT&T and Verizon to hamstring a technology that could someday make it easier for consumers to seamlessly switch their wireless carriers, according to three people familiar with the matter. >The probe appears to focus on whether those companies -- perhaps in a bid to stop their subscribers from jumping ship to rivals -- colluded to undermine so-called eSIM cards, a technology that could someday allow the owners of smartphones, smartwatches or other devices to change their service provider on their own, the people said, speaking on condition of anonymity to speak freely about the probe, which has not been made public.