margin of security वाक्य

I had a margin of security at the start of the time trial,
The margin of security is much too narrow.
The attack led some lawmakers to begin talking about an extra margin of security at the Capitol.
"In today's climate, we need to look at those things that will provide us an extra margin of security ."
With less margin of security, a small population is also more vulnerable to the various forms of human persecution and natural catastrophe that can deliver a coup de grace.