Ben & Jerry's ice cream co-founder Ben Cohen stationed himself on New York's Union Square for two hours on Tuesday to hand out hundreds of dollar bills on which he had printed messages denouncing corruption in Washington.

"In the United States, we don't have good environmental regulations or energy policies and it's all because the big corporations are paying politicians so that they don't approve laws to improve the situation," the activist businessman told Efe.

Dressed in a T-shirt on which was printed "The System Isn't Broken, It's Fixed," Cohen came to Union Square with his Amend-O-Matic StampMobile, a van towing a gigantic circus-like mechanism with which he prints assorted slogans on dollar bills that he then hands out to passersby.

Slogans printed on the bills include "Not to Be Used for Bribing Politicians" and "Stamp Money Out of Politics."

The vehicle attracted dozens of New Yorkers who, besides receiving the dollar bills Cohen had pre-printed with the contraption, also gave him their own bills to be stamped, although not without a substantial amount of incredulity at the unusual protest effort.

Cohen's goal is a constitutional amendment that overturns the Supreme Court's 2010 Citizens United ruling, which spurred a massive increase in corporate spending on political campaigns.

The proposed amendment would declare that "money is not speech" and "corporations are not people." EFE