Sole support for highways from "user fees" is a dangerous concept.

They were going to solve this labor problem once and for all, always a dangerous concept.

The idea of state control of a woman's body is a dangerous concept.

He was a white killer among Orientals, at best a dangerous concept, it was time for him to move on.

"I think style is a very dangerous concept," he said.

Some people consider curiosity a very dangerous concept.

Some courts consider psychological parenthood a fuzzy, potentially dangerous concept.

It is not the task of the Commission to implement these one-sided, dangerous concepts.

This is a very dangerous concept that poses dire problems of safety and security for riders.

Blood guilt is one of the most vile and dangerous concepts our race ever came up with.