But US allies like Qatar and Turkey are arming the rebels with Washington's tacit approval, she adds.

BBC: Panetta backs Syria rebels arms plan

The Timorese presume it would, in contrast to 1975 when the West gave tacit approval to Indonesia's invasion.

ECONOMIST: Former guerrillas turn regular

By allowing these companies to continue without action from the public, it is almost a tacit approval to continue the status quo.

FORBES: We Have it ALL Wrong!

Russian Foreign Minister Igor Ivanov gave his country's tacit approval to the text of the resolution, although his support came with a caveat.

CNN: graphic

China's figures for the first half of this year show that 40% of tourist visas were granted to independent travelers--indicating tacit approval from above as Chinese tourists continue to open their wallets--and minds--around the region.

CNN: ASIANOW - TIME Asia | Travel Watch

Antonio Fazio, the governor of the Bank of Italy, spent months this year employing unusual methods (with the tacit approval of the government) to block a Spanish and a Dutch bid for two of the country's mid-sized banks.

ECONOMIST: Mergers and acquisitions

There's no mention in either document of the Tanaiste needing to sign off on such a decision, even if in practical terms it's impossible to imagine London pushing ahead with such a move without at least some form of tacit approval from Dublin.

BBC: Dual mandate on Irish unity