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Keystone pipeline: What you need to know

Southern site of Keystone pipeline
Pipe is stacked at the southern site of the Keystone XL pipeline on March 22, 2012 in Cushing, Oklahoma.
Tom Pennington/Getty Images

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The Keystone XL pipeline has been a subject of hot debate among politicians and advocacy groups for a number of years.

On The Daily Circuit, we'll take a step back from the politics to look at what exactly the Keystone pipeline will do, where it will go and why there's so much controversy around this pipeline.

Do you have questions about the pipeline? Leave them in the comments below.