The war of words over the Keystone XL pipeline is heating up again after Barack Obama's tough talk about environmental action at the State of the Union. His decision on whether or not to green-light the trans-border project is still pending, and environmental activists are ramping up pressure. On Wednesday, 48 protesters were arrested in front of the White House. Another demonstration is planned for Sunday. David MacLean is with the Alberta Enterprise Group, which advocates on behalf of the oil industry.