The agencies also may have had little choice, since the flood of humanity was virtually unstoppable.
When they get the ball inside to him, they're virtually unstoppable.
Gaines proved to be virtually unstoppable against the Toledo defense.
We have seen all season that once Manchester United go in front, they are virtually unstoppable.
On the court, when he catches the ball near the basket, he is virtually unstoppable.
Contaminated currency would be a perfect, virtually unstoppable way to spread it.
But now a researcher has determined that a new kind of Trojan horse could make the systems virtually unstoppable.
Houston, in rhythm from the outside, was virtually unstoppable.
He is virtually unstoppable, the only player to homer in each of his first three Series games.
In the meantime, Smith's team, his creation, has become virtually unstoppable by non-negotiable means.