Note: We first saw this poster being held by demonstrators marching to the Manitoba Legislature protecting the lack of clean drinking water on the province's northern reservations covered in a video report by APTN April 28, 2008. It accompanied today's article in the Winnipeg Free Press entitled, "Band members protest INAC's handling of flood problems."
It's in reference to the federal government (Indian and Northern Affairs Canada) recently sending slop buckets to reservations that complained of water conditions.