This is a basic change in the principles of how systems are built'.

Most people never consider the possibility of a basic change in their own system.

But tonight he will bring you his program of basic changes to our social system.

Administration officials said there was no basic change in many key elements of the American position.

Look forward to basic changes in the relationship only over the long haul.

But the officials insist that they have had no basic change of heart.

So that the basic change was not in reaction to 9/11.

"You might see some things accelerate or slow down, but not a basic change in direction."

While we need to protect the due process rights of all employees, basic changes are necessary.

The action reflects a basic change in the Government's secret management of the nuclear weapons industry.