Getting inside the outer security perimeter is the easy part.

Control access into the scene through the security perimeter.

General Smith wants all the children back inside the security perimeter.

The guerrillas still fire rockets from well inside the security perimeter.

Most important, embassies should have enough ground area to allow a 100-foot security perimeter on all sides.

The idea is they have two machines, one inside the security perimeter, one outside.

The expanded security perimeter had come from that extra room, which was fine.

The security perimeter around Daryaei's home stopped short of their destination.

And so if there's tremendous pressure against the security perimeter, any leak will allow someone in.

Too, the women were virtually never left alone, even when gathering plants nearby or getting water well within the security perimeter.