The Canada Revenue Agency headquarters in Ottawa is pictured on November 4, 2011. An independent Liberal senator says the Canada Revenue Agency is misleading Canadians when it claims it's making serious efforts to combat offshore tax evasion. Sen. Percy Downe, who has been pushing for a crackdown on wealthy individuals and corporations who stash their money in offshore tax havens, says the CRA is hiding behind "weasel words" to disguise the fact that it's actually doing little to remedy the problem. THE CANADIAN PRESS/Sean Kilpatrick