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Tunnel endpoints must be authenticated before secure VPN tunnels can be established. User-created remote-access VPNs may use passwords, biometrics, two-factor authentication or other cryptographic methods. Network-to-network tunnels often use passwords or digital certificates. They permanently store the key to allow the tunnel to establish ...

Western Canadian Select (WCS) is a heavy sour blend of crude oil that is one of North America's largest heavy crude oil streams. It was established in December 2004 as a new heavy oil stream by EnCana (now Cenovus Energy Inc.), Canadian Natural Resources Limited, Petro-Canada (now Suncor) and Talisman Energy Inc. (now Repsol Oil & Gas Canada Inc.).

The Union Pacific Railroad (reporting marks UP, UPP, UPY), legally Union Pacific Railroad Company and simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over 32,200 miles (51,800 km) routes in 23 U.S. states west of Chicago and New Orleans.

[needs update] Full service resumed on 27 July 2009. An additional strike by the Canadian Auto Workers (CAW) union, representing around 2,200 employees, was planned to begin on 4 July 2010, but was called off after the union and Via reached a three-year contract.