The authorization process for attending Pentagon briefings would typically involve clearance and approval from relevant authorities within the Department of Defense (DoD) or the Pentagon itself.
Access to classified information and attendance at high-level briefings are generally restricted to individuals with appropriate security clearances, job responsibilities, and a legitimate need to know.
The specific protocols and procedures for authorizing individuals to attend Pentagon briefings can vary depending on various factors, including the nature of the briefing, the individual's role or position, and the level of security clearance required