Salvation

Some reasons that we should have dropped the bomb:

• We ended the war early
• The bomb saved millions of Allied lives
• The Japanese were so desperate that they were training women and children with bamboo spears
  
• The Allies didn't have to use as many resources as they would have had to if they had invaded Japan
• We told the world that we had the capability to use this new super weapon
• The U.S. got the Japanese back for Pearl Harbor

Destruction

Some reasons that we shouldn't have dropped the bomb:

• We killed thousands of civilians
• We gave the Russians and everybody else the knowledge that we had atomic bombs, which started the Cold War
• Normal bombing could have sufficed
• We had to send medical people in to the danger zone to help the wounded
• The Allies used as much medical supplies on civilians as we would have on troops
• We invested too much of our money on creating and dropping the bombs.  $20 billion was spent between 1940 - 1945.  Compare this to the rest of the war, which cost over 100 billion dollars, including the ammo and equipment and the salaries.  So from that perspective the Manhattan Project was not really worth the money.  

Some people who were for the Manhattan Project were:

• President Harry S. Truman 
• President Franklin D. Roosevelt
• Dr. Robert Oppenheimer
  
• The pilots and crews of each aircraft felt differently about dropping the bombs.  Col. Paul Tibbets said in an interview  that he felt it was the right thing to do, and would do it again if needed.  The other pilot said that he felt that it should have been done, but he didn't want to do it.  

Conclusion

I agree with President Truman's decision.  My conclusion from my research is that yes, we should have dropped the bomb because we saved more lives than we took away.