CHICAGO, Ill. -- Protesters are out and vocal in Chicago.

The demonstrators targeted an oil project ahead of this weekend's NATO Summit. They say the Keystone XL Oil pipeline project would have a negative impact on the environment and the poor.

They covered themselves in chocolate to represent oil and what they say is NATO's greed.

"We are here to demonstrate to the public that death and blood for oil is dirty business,” said Natalie Wahlberg.

The proposed Keystone pipeline would run from the Canadian border and connect with a pipeline in Nebraska.