"Market forces and commercial interests will likely limit the circumstances in which companies will offer encryption that obscures user data from the companies themselves, and the trajectory of technological development points to a future abundant in unencrypted data, some of which can fill gaps left by the very communication channels law enforcement fears will "go dark" and beyond reach," it adds.
Some law enforcement officials fear that taping may chill the candor of suspects.
Law enforcement authorities fear Al Qaeda's presence in the United States, but admit that they have not established it as fact.
Still, several Republicans suggested sympathy with law enforcement officials' fear that changing technology could hamper their ability to investigate criminals and terrorists.
Some law enforcement officials fear that industrial hemp may shield illicit marijuana, but supporters of hemp say the concern is unfounded.
He was arrested in an operation kept secret from St . Petersburglaw enforcement for fear that corrupt local police officers might tip off Mr. Barsukov.
Hysteria shuts down schools and airports, paranoia undermines health workers and law enforcement, and fear encourages some of people's worst instincts.
Law enforcement officials fear a repeat of the bloodshed that followed a similar split in the 1980s, when more than 20 gangsters were killed and hundreds arrested over a five-year period.
Law enforcement officials fear that the recruits, who hold American passports, could be tapped to return to the United States to carry out attacks here, though so far there is no evidence of such plots.
And, as Charles Clover of the Financial Times explained, Russia has the largest and most violent population of skinheads in Europe, and law enforcement, for fear of their strength, has taken to co-opting these extremists, protecting them, even giving them financial support.
