Whether Netanyahu wants to end Iran’s nuclear program or replace its regime, they’re both risky propositions with little chance of success.

Open hostilities between Israel and Iran entered a fourth day on Monday with no sign of easing, stoking fears of a wider war in the oil-rich region.

Regime change in Iran could be a result of Israel's military attacks on the country, Israeli Prime Minister Benjamin Netanyahu told Fox News on Sunday, saying Israel would do whatever is necessary to remove the "existential threat" posed by Tehran.