"The U.S. has never suffered war, their wars have always been somewhere else. They think it's like a chess game, moving the pieces from one side to another. This can't go on, this must end."

Concepcion is heartened by the seriousness with which people are responding to her messages. "These days reactions are more positive. People feel that something needs to be done, but still, they need some sort of push, because they still have to learn how to face reality. So although people are much more aware that they can't live in a world with mass destruction weapons, they still need to be more active and overthrow the government.

"We have to take science and technology but to use it for the good of human kind; we should use our brains not to develop bombs but to do research for good."

A group of tourists walk by and stop to read Concepcion's signs. They are speaking another language, and Concepcion asks them what it is. "I speak French, Spanish, Portuguese, Italian, and English. But these tourists are Dutch, and Concepcion shrugs as she says, "You see, I could teach school. I used to teach school.

"I live with no money, it's a matter of principle that keeps me here. I money, it's a matter of principle that keeps me here. I could be working, I could be teaching like I used to, but there's no way I'd ever go back to the system," she says.

"God knows I wish not to stay here but if I have to I have to. That's me, I just can't stand injustice and oppression. I need to dedicate my life to peace and justice."