What was the code name of the informant used by woodward and bernstein in the watergate scandals?

How did the enlightenment change attitudes about existing political systems

Why did un coalition troops battle iraqi forces in 1991? iraq had invaded saudi arabia, along with its other border nations.iraq had invaded kuwait, which was a major source of the world's oil.the united nations wanted to remove saddam hussein from power.the united nations wanted to prevent the trade of illegal drugs.

What new concept did the the american revolution introduce into the world