...[E]nvironmental activists...will gather this week at the Federal Railroad Administration office in Sacramento and at the Davis train station to protest plans by oil companies to run hundreds of rail cars carrying crude through local downtowns every day. The protests, on the anniversary of an oil train crash and explosion that killed 47 people in the Canadian city of Lac-Megantic, will spotlight a plan by Valero Refining Co. of Benicia to launch twice-daily crude oil train shipments through downtown Roseville, Sacramento and Davis early next year...The Davis City Council recently passed a resolution saying it opposes running the trains on the existing downtown Davis rail line...[Four] Northern California members of Congress [in a letter to the US Department of Transportation] said oil companies should be required to remove more volatile gases from Bakken crude oil before it is shipped nationally from North Dakota. The federal government issued a warning earlier this year about Bakken crude after several Bakken trains exploded during derailments. [also refers to Union Pacific]