Why an unverified Iran drone tip prompted FBI alerts to California law enforcement

An FBI advisory referencing an unverified tip about a potential Iranian drone concept off the California coast circulated to multiple California law enforcement agencies — only to be forcefully downplayed by the White House hours later.

The advisory, distributed through federal security channels, referenced intelligence suggesting Iran had "aspired" to launch unmanned aerial systems from a vessel offshore. The email did not identify specific targets, dates or operational details.

The...