In many of these cases, unnecessary or at least potentially controversial use of force goes unnoticed by the public and unquestioned by police officials.
However Jack's time travelling hasn't gone unnoticed, there are dark forces lurking in the wings, the Dustmen.
American officials have said that soldiers are especially on edge because they are fighting a paramilitary force that slips unnoticed into the civilian population, launching assaults from school buildings, hospitals and other places that the United States generally will not attack.
The memorandum noted that digging such a long tunnel and emptying the soil could not have gone unnoticed by neighbors and security forces because "it takes a lot of time and a means of transportation to carry the soil away".
Memo to the leaders of Russia, China, Pakistan, Sudan, and any other country that has designs on recapturing disputed regions, islands, or principalities: If you are planning on some unwise military action, late next week would be a good time to have your forces nip in unnoticed.
Blue walked to the periphery of the town of Romney unnoticed by the occupying Union Army forces, and successfully made it to safety.
In a virtually unnoticed two-hour tour-de-force, the Maryland Republican sat in for the conservative talker on March 6, right as the controversy over his statements on Rush Limbaugh reached its height.
But its emergence as a global force has not gone unnoticed either by artists or the people who pay for their work.
People are moved less by a stable disposition and more by internal and external forces that generally go unnoticed in our causal stories.
But largely unnoticed last month was the weather that forced airlines flying the polar route between the United States and Asia to detour south over Alaska.
