Veteran Senator John McCain puts the blame squarely on the U.S. and the rest of the world for allowing President Bashar Assad to wield chemical weapons that could be used to murder his own people in mass numbers.

In a candid conversation with Greta Van Susteren, McCain said that while Russia could help, he has seen no signs that they are willing to do so.

“The Russians have not only not been neutral, they haven’t been very helpful,” said McCain.

“Will the world have blood on their hands if he [Assad] unleashes these chemical weapons,” asked Van Susteren.

McCain said “we would be directly responsible” because “we didn’t intervene” early on.