Despite a pause in hostilities during the rickety ceasefire U.S.-Iran ceasefire, the number of American casualties has ticked up to 423.

Service members and intel agencies reportedly warned about potential vulnerabilities and enemy fire before deadly incidents killed 13

Iran says 4 people were killed in what the U.S. military describes as "self-defense strikes," but Rubio says a deal is still possible despite the clash.

Despite a pause in hostilities during the rickety ceasefire U.S.-Iran ceasefire, the number of American casualties has ticked up to 423.

The U.S. military carried out another round of strikes on Iran, a U.S. official confirmed to CBS News on Wednesday, another challenge to a shaky ceasefire between the two…