In cities from coast to coast, "Occupy Wall Street" demonstrators took to the streets again over the weekend -- marking more than three weeks of protests against big corporations.

The movement started in New York City last month and has now spread to at least 25 cities, attracting a broad spectrum of people frustrated with government, gas prices, corporate greed, and a lack of jobs. 

A new ORC International Caravan Poll released Monday also revealed that 51 percent of Americans have heard of the Occupy Wall Street protests.

"Who are we? We are the 99 percent!" demonstrators chanted at one recent event.

Their biggest gripe is with the rich -- blaming them for profiting at the expense of the middle class and those less fortunate.

But some politicians have another name for the Occupy Wall Street participants.

"I for one am increasingly concerned about the growing mobs occupying Wall Street and the other cities across the country," House Majority Leader Rep. Eric Cantor said.

Republican presidential candidate Herman Cain called the protestors anti-American and anti-capitalist.

"Don't blame Wall Street, don't blame the banks," he said. "If you don't have a job, if you are not rich, blame yourself."

Over the weekend, an Internet hacking group posted a video on YouTube threatening to shut down the New York Stock Exchange in retaliation for the arrest of hundreds of demonstrators.

The FBI is investigating that threat.