'Castelman cap': Israeli invention aims to prevent crossfire during a terror attack
"כובע קסטלמן": פיתוח ישראלי מבקש למנוע ירי דו-צדדי בזמן פיגוע
Summary
Ron Markovich, a former VIP security guard, has developed a pop-up identification cap that opens quickly with one hand, intended for armed civilians in Israel to avoid being mistaken for an attacker during a shooting.
