today about arizona s controversial immigration law. republican governor jan brewer asked the panel to reverse a lower court ruling suspending enforcement of some of the law s provisions. the federal government contends the law interferes with the exclusive power to regulate immigration. federal appeals court in san francisco indefinitely extended the pentagon ban on gays openly serving in the military. the panel approves a freeze on a judge s order that halted especially forcement of don t ask, don t tell law. the government is in the process of appealing that first judicial order. that said the law was constitutional. up next, suspected hanky-panky before the polls even open. here it here. engineer. my kids say i speak a different language. but i love math and math and science develop new ideas. we ve used hydrogen in our plants for decades. the old hydrogen units were veryarge. recently, we ve been able to reduce that.