1. Free the Planet activist Nalini Pillai, 18, of Oakland, lights a candle at a candlelight vigil protest of the Keystone XL pipeline at Schenley Plaza in Pittsburgh, PA on Wednesday, Feb. 5, 2014. A group gathered in the cold to speak against the construction of the pipeline, one of a succession of protests across the country this week as the State Department starts the  final public comment period for the proposed project.