The collateral fact doctrine has two principal flaws.

And that is the book's principal flaw.

Computer scientists there said the program with the principal flaw was rewritten about a year ago.

That nobody is likely to dispute the assertion is both the film's reason for being and its principal flaw.

But the principal flaw of the prevailing theory may actually be a financial one.

The principal flaw in Ponselle's voice, past the earliest years of her operatic career, was a problematic top register.

A principal flaw the court found in the commissions was that the president had established them without Congressional authorization.

His principal flaw was a certain roughness in the transitions between lyrical passages.

The narrative's principal flaw could be corrected with a single stroke of the pen.

The principal political flaw of the Clinton Administration so far may be its failure to maintain that focus in day-to-day policy making.