By the Washington Post, the fourth largest ISP in the US, a spin off of Sprint-Nextel, Embarq, monitored Internet activity on some 26,000 customers in Kansas using deep-packet inspection technology NebuAd in order to deliver targeted advertising to users' desktops.

The House of Representatives Committee on Energy and Commerce is investigating whether any privacy laws were broken. Users were informed of this test and invited to opt out only via Embarq's online Privacy Policy; a mere 15 subscribers did so.