Breaking News, Latest News and Videos DC police respond after huge ‘8647’ etched into grass on the National Mall, aerial images show WYFF News 4 reports: Huge ‘8647’ etched into grass on the National Mall, aerial images show CNN Police investigate '8647' written in grass on US national mall BBC Markings that appear to show the numbers "86 47" seen on National Mall in Washington CBS News Giant '86 47' found marked in the grass on the National Mall ABC News - Breaking News, Latest News and Videos DC police respond after huge ‘8647’ etched into grass on the National Mall, aerial images show WYFF News 4