(See Corrections & Amplifications below.)  TUSCARORA, Nev. --
The residents of this tiny town, anticipating an imminent
attack, will be ready with a perimeter defense. They'll position
their best weapons at regular intervals, faced out toward the
desert to repel the assault.  Then they'll turn up the volume.
A Mormon cricket crosses a highway north of Sparks, Nev., in a
recent spring. The 2-inch-long insects often carpet the arid
landscape in the spring and summer, devouring vegetation and
driving residents to distraction. Reno Gazette-Journal  But the
crickets don't much fancy Led Zeppelin or the Rolling Stones,
the townspeople figured out three years ago. So next month,
Tuscarorans are preparing once again to get out their extension
cords, array their stereos in a quarter-circle and tune them to
rock station KHIX, full blast, from dawn to dusk. "It is part of
our arsenal," says Laura Moore, an unemployed college professor
and one of the town's 13 residents.  In flyspeck villages like
Tuscarora, crickets a