DETROIT, Feb. 3 (UPI) -- Thousands of law officers are pulling out all stops to cast a tight security net over Detroit for Super Bowl XL on Sunday.
In one of the largest such efforts ever, authorities are trying to leave no stone unturned in checking out every aspect of protection and detection in the area of Ford Field where the game will be played, USA Today said Friday.
Their overview ranges from the U.S. Coast Guard's patrol of the Detroit River to plans drawn up with local hospitals. James Tate, second deputy chief of the Detroit police, says doctors will watch for signs of disease outbreaks that could be evidence of a biological attack.
Federal agents have been searching the stadium for any signs of explosives and contraband, using gamma-ray scanners to check trucks entering the facility.
The U.S. Postal Service removed mailboxes this week from the downtown area near Ford Field and parking has been banned in the central business district.