The Power of Posters

The Graphic Imperative is a touring collection of posters that were made to communicate some of the more serious social issues from the last 40 years or so. Take a look at the posters.

As you do, think about some of the following:
What makes these posters good (or bad)?
Do some of the posters cross the lines of propriety?
Is it alright to cross the line of propriety to get a message across?
What role/responsibility do designers have in bringing about social change?
What kind of impact does/can design have on actual social change?
What kinds of causes do you think are worthy of your artistic support?

Tell us what you think.