The roots of the problem, they say, run deep in Mexican society.

Because of the changes, many public housing residents have refused to leave the area, where roots run generations deep.

His roots, or at least his private property lines, run too deep.

He loved the land- his roots here run deep.

But his roots in Washington, which he now calls the "arrogant empire," run deep.

True, her conservative roots run deep, as she has proved innumerable times.

But roots run deep in the coal fields, and many miners keep coming back.

Some trees stood more than five feet high, and their roots ran down to the footprints.

And yet, the roots of it ran deep, did they not?

We've taken our discipline fairly lightly in this country, but its roots run deep.