United States--the US is one of the top coal producing countries in the world. 
The US produces and uses coal as an energy source and therefore would have a need for regulation. Though coal has taken a hit in the US it still have coal fields being mined and many electric plants still use "clean coal" as its energy source. 
        
             
        
        
        
Can you post a more high quality image?
 
        
             
        
        
        
Answer:
not being able to bring home the Iranian hostages
Explanation:
President Jimmy Carter held the presidency during the Iranian hostage crisis  in 1979. The crisis started after a group of militarized College students  who supported Iranian revolutions attacked the United States embassy in that located in Tehran and took 52 hostages.
The crisis lasted for 2 years and wasn't solved by the Time Carter's presidency ended.  The crisis ended after Ronald Reagan took the presidency in 1981 and signed the Algiers Accords,
 
        
                    
             
        
        
        
Flashing yellow: 'proceed with caution'
usually to mark presense of a firestation nearby
flashing red: 'stop, then proceed'
flashing red is just a stop sign essentially