The proximity does mean that the government can keep close tabs on its citizens here.

You people keep such close tabs on it, at least that's what I hear.

But they keep close tabs on each other's juice bars.

I kept close tabs on him, like you told me to.

I'm not going to take over the case personally, but I'll be keeping close tabs on it.

I must 'a' been keeping too close tabs on the door.

"But we all keep close tabs on each other's projects."

Along with other services, the management kept close tabs upon its guests.

"They keep very close tabs on everything the Japanese do."

The Dutch secret service kept close tabs on the party.