"All observations beyond our galaxy are obscured by the disc of the Milky Way," he points out, so we need to be careful how we interpret them.
This is the deeply unsettling situation effectively framed by General Alexander in his testimony and rather than having been obscured by this week's news it should only have been amplified by it.
The veil she was wearing obscured her features.
But a Titanic struggle behind the scenes, obscured by public events and often blurred by Tehran's whirring rumour mill, may be just as crucial to the country's future.
Although partially obscured by clouds, oil is discernible in two areas, a serpentine slick near the Mississippi Delta, and a large round slick south of the Mississippi-Alabama border.
The issue.is largely obscured by an increasingly unreal debate about airy - fairy constitutional modalities(Manchester Guardian Weekly)
Tic data is further clouded as the true holdings of Asian central Banks such as the People's bank of China are obscured by their use of custodians in big financial centres offshore.
Lau followed on his tail, and saw a gloveless hand and a woman's face half-obscured by a black hood.
The item he intentionally obscured would make several interpretations possible.
Looking through the scope of his M-4 rifle, the squad leader spotted a group of men standing farther down the road, suspected militants, their figures obscured by the afternoon haze.
The snow-capped peaks north of the fire are dingy brown and partially obscured by smoke.
Indeed, the fiery argument about capitalism prompted by the credit crunch has obscured a nascent, and much broader, debate about the nature of government.
The labels were obscured by socks pulled up to the rim of each can, so to cheat a volunteer had only to lower the sock.
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