New trade regulations began opening the already porous border even more.

I have held hearings to discuss the problem of our porous borders.

He said the government would build a security fence across much of the porous border with Malaysia.

The reason, of course, is the porous border with the United States.

They were unable to see the long, porous border between the right and the middle.

"When people talk about a porous border, this is it," said a Western diplomat, who has visited the region.

Pakistan already has an estimated 80,000 troops on its porous border with Afghanistan.

It follows that Washington ought to pay for the consequences of porous borders.

We have a long, porous border, which will remain a threat.

Mexicans, rich and poor, see a relatively porous border as an essential part of their economy.