President Donald Trump touts 'monumental' damage to Iran's nuclear sites following strikes as analysts see game-changing moment, but say still more needs to be known.

Ballistic experts say it's too soon to determine how much damage Iran's nuclear facilities sustained in the weekend attack. On Saturday night, the United States targeted nuclear sites in Iran believed to be essential to the country's ability to produce nuclear weapons: a uranium enrichment site located in northwestern Iran -- deep inside a mountain in Fordo -- along with another uranium enrichment site in Natanz and the Isfahan Nuclear Technology Center,