Those obstacles impeded its capacity to track the movements of William J. Casey, the suspect at the heart of the allegations.

No obstacle, as any veteran would know, seriously impedes assault unless it is backed by men and weapons, men with an advantage over the attacker.

What obstacles are impeding my progress?

Despite promising potential, formidable obstacles still impeded the drive for modernization.

Research institutes developed sophisticated industrial technologies, but bureaucratic and political obstacles impeded implementation.

But after 10 weeks, an unspoken obstacle is greatly impeding a settlement - the growing hostility and distrust felt by both sides.

Natural obstacles impeded his progress.

Yankee had hoped it might be an informal gathering to break down whatever obstacles were impeding an unorthodox intelligence mission.

Mr. Schnittke was able to continue working without official support, although obstacles impeded him continually until 1985.

Such technical obstacles also limit the complexity of integrated laboratory robotic platforms, and thereby impede the development of higher level autonomous experimentation systems.