Even if they did, it wouldn't change much.

1. Nobody would launch nukes domestically, so moot point.

2. Using nukes internationally would be a faux-pas beyond fixing. Every modern, nuclear-equipped nation understands this.

3. The United States doesn't need nuclear weaponry to dispel invaders, or even to retaliate against foreign attacks. Their nuclear weapons exist to deter other nuclear superpowers from using their weapons for petty gain.

Absolutely agreed. The US military is so well funded and capable that they could finish the job without needed to resort to nukes.

Not sure if you’re being sarcastic or serious.

America totally crushed Grenada!