August 14, 2015: AT&T joins T-Mobile and Verizon in offering new contract free plans based on monthly data caps. The carrier is offering five tiers, starting with 300MB of data for $20 per month, then escalating to 2GB for $30, 5GB for $50, 15GB for $100 (probably the best deal), and 20GB for $140.
The Hub and Spigot are two types of fitting on either end of a pipe. At one end you have the Hub (Socket) fitting; which is a female end of a fitting designed to accept pipe or a SPIGOT connector. At the other end you have the Spigot fitting; which is a male end of a fitting designed to be used inside another fittings Socket (or Hub) end.
The purpose of the wheel hub is to serve as the glue between the tire and the axle. Tires are attached with studs to the hub assembly. The hub assembly then fits on the axle, which connects the tire component to the rest of the car. Because the wheel hub is the bridge between the tire and the entire vehicle, if one of its parts breaks down, it creates a ripple effect. That could include problems such as impaired steering or a broken axle.