Gov. Jan Brewer of Arizona today signed the toughest immigration enforcement bill in history and blamed the Obama administration for leaving Arizona no choice

She told a press conference at the state's National Guard headquarters, that it was not the job of state government to secure the border "but we have no other choice.''

"Those who have failed to protect us have shown only weakness and delay,'' she says, adding that top administration officials have "simply turned a blind eye to the issues that Arizona is being overrun by illegal immigration, terrorizing the citizens.''

"No matter the cost, no matter the sacrifice, we cannot shirk government's principle responsibilities to the citizens we serve to provide safety and security,'' she says.