Arizona's governor vows the state's tough new law targeting illegal immigration will be implemented with no tolerance for racial profiling, but at least two advocacy groups were preparing legal challenges and Mexico has warned that the law could affect cross-border relations, AP reported. Gov. Jan Brewer on Friday signed into law a bill that supporters said would give police more powers to deal with illegal immigration in Arizona, the nation's busiest gateway for human and drug smuggling from Mexico and home to an estimated 460,000 illegal immigrants. The law makes it a crime under state law to be in the country illegally. It also requires local police officers to question people about their immigration status if there is reason to suspect they are illegal immigrants; allows lawsuits against government agencies that hinder enforcement of immigration laws; and makes it illegal to hire illegal immigrants for day labor or knowingly transport them. With hundreds of protesters outside the state Capitol shouting that the bill would lead to civil rights abuses, Brewer said critics were «overreacting» and that she wouldn't tolerate racial profiling. -- SPA