But tracing the origin of the strain of anthrax that killed five people last fall has been a far murkier venture.

In other words, his is a far murkier moral universe.

While human rights concerns used to focus primarily on known dissidents imprisoned for challenging China's government, many of the new disputes involve formerly unknown people incarcerated for far murkier offenses.

In a sense, the background radiation, too, has become part of Olbers's paradox - a light from all directions, uniform in intensity, though far murkier than the flaming surface of stars.

Her encounters with Tizbe and involvement in matters far murkier than any young var should have to deal with, newly fledged from her birth clan.

The picture was far murkier for consumers, because the extent of SBC's local service plans are fuzzy at best.

The situation in Sparta is far murkier, with dueling scientific reports about the presence of tremolite fibers, debate about conflicting state and federal standards of measurement, and different attitudes among newcomers and old-timers here.

A far murkier picture turns up in the comments of military and diplomatic experts throughout the region.

The outlines of Mr. Silver's demands have been clear for months - though what precisely it will take to win him over remains far murkier.

Brutus's motives are as clear as Anatolian spring water, but Cassius is a far murkier individual.