The federal government is set to give aboriginals a major concession on Ontario's new harmonized sales tax, amid threats that protesters will "shut down the country" when it plays host to world leaders at the coming G8 and G20 summits.

Until this month, Ottawa had ignored natives' pleas for a provincewide point-of-sale exemption from the HST after it takes effect on July 1. But with native leaders set to plan protests that could include outright blockades, federal and provincial officials engaged in a frantic round of negotiations.

Read the entire Globe and Mail article here.