The symbols are the american flag, the republican elephant and the democratic donkey. It's saying that there are 2 americas: one a democratic and one a republican.
The symbol in this cartoon is uncle sam, who represents the u.s. government. The u.s. government is loaning a lot of money to japan, who seems to not really need that much.
The symbol in this cartoon is the statue of liberty which stands for liberty. She is crying which means liberty is failing in america.