David Dougherty with The Real News takes a very good in-depth look at the continuing White House protests and the environmental and social issues surrounding the Alberta Tar Sands and the Keystone XL pipeline. Protesters are demanding that President Obama use his veto power to halt proposed expansion of Keystone XL pipeline, which would carry tar sands oil from Canada, through Montana and the Great Plains, and then down to refineries in Texas along the Gulf of Mexico.
Also, I just ran across this new report (download pdf) from Oil Change International called Exporting Energy Security: Keystone XL Exposed.