"But we had a concern when crack started to mushroom like a cloud," he said.

Another possibility is that the crack epidemic only started in 1984, when the study began, but was not recognized until 1985.

Within just a few years, however, cracks start to show.

Others are looking for perfect friends, and they leave when the cracks start showing.

By April 2005 cracks had already started to appear in the concrete.

After more touring, the cracks in the band were starting to show.

A. When crack started getting out there, everybody was talking about how great a high you get.

The cracks in the relationship were starting to show.

A long crack started to run up from the bottom of the wall in front of her to the top.

This hit the band hard and the cracks started to appear.