The companies are under investigation as part of the Pentagon study of military procurement.

According to a secret portion of the Pentagon study, more than 70 nations now use underground installations.

According to one internal Pentagon study, a lease-purchase deal for 100 767's would cost 15 percent more than simply buying the planes.

Here are some of its shortcomings, as identified by two Pentagon studies.

The median lifetime cost of a soldier is about $4 million today and growing, according to a Pentagon study.

And a Pentagon study says the island's sea wall will fail in less than 50 years.

But Pentagon studies show that current recruits need one to three years to reach full competency in combat or support skills.

The Pentagon study is the first attempt to assess the cost in a methodical way.

Parents are another major obstacle to recruitment, Pentagon studies have shown.

A Pentagon study in the 1990's predicted that such a war could kill one million people.

The companies are under investigation as part of the Pentagon study of military procurement.

According to a secret portion of the Pentagon study, more than 70 nations now use underground installations.

According to one internal Pentagon study, a lease-purchase deal for 100 767's would cost 15 percent more than simply buying the planes.

Here are some of its shortcomings, as identified by two Pentagon studies.

The median lifetime cost of a soldier is about $4 million today and growing, according to a Pentagon study.

And a Pentagon study says the island's sea wall will fail in less than 50 years.

But Pentagon studies show that current recruits need one to three years to reach full competency in combat or support skills.

The Pentagon study is the first attempt to assess the cost in a methodical way.

Parents are another major obstacle to recruitment, Pentagon studies have shown.

A Pentagon study in the 1990's predicted that such a war could kill one million people.