One such material is asphalt, a substance often placed on top of buildings and used to cover road surfaces.
VOA: special.2010.03.02
Antique gun collectors take notice: on Nov. 15, 16, and 17 in San Francisco, premier firearms auctioneer Greg Martin is holding a series of four sales loaded with topmaterial.
If they are considered top management material it's because of other unquantifiable traits that, clubs believe, will translate to success at the next level.
In the years that followed, Gonzales stored this information and 17 other documents that the inspector general discovered in a safe outside his Justice Department office that also was not designated as protected for such top secret material.