Twenty-five protesters have been arrested in what's shaping up as a major confrontation over plans to push a big oil pipeline into a suburb of Vancouver, British Columbia, and run 890,000 barrels of oil a day beneath a protected conservation area on Burnaby Mountain. The pipeline, larger than the controversial KeystoneXL project, would bring 30 oil tankers a month into the Strait of Juan de Fuca and Haro Strait, the water boundary between the San Juan Islands and British Columbia's Gulf Islands.