Transcript for Leon Panetta: 'No One Attacks the United States and Gets Away With It'
At this hour. In some very dangerous. Corners of the world. Young Americans. We're standing guard. Our brave military. And intelligence professionals. Are on the front lines. Far from home. Risking their lives. For us. For our freedom. For our way of life. The president. A commander in chief. Has no greater responsibility. No greater responsibility. In the decision to send our troops. In the harm's way. I have worked. Alongside nine presidents. Republican. And Democrat. All experience. All believing. In the US role in world leadership. I can tell you this. That in this election. There is only one candidate for president who has the experience that temperament and the judgment to be commander in chief. And that's Hillary Clinton. This is no tune. This is no time to gamble. With our future. America faces. Flash points. And threats. From around the globe. We need a president. Who's strong. And Smart. And courageous. Who enters the Oval Office. With the respect of the generals and admirals who lead our military. With the confidence of diplomats. Who represented America. And what the trust of our troops. Who know that she will always have their back. That president. Is Hillary Clinton. During my time as CIA director. And secretary of defense. Hillary was a strong supporter. Of our efforts to protect our homeland. To decimate al-Qaeda. And to bring Osama bin Laden to justice. It was a tough decision. To go after bin Laden. And long meetings in the White House situation room. We debated. That fateful decision. I presented the intelligence. To the president and to others. Laying out the wrist of that operation. And when the president went around the table. To our country's national security leadership. There were concerns. But Hillary was clear. We have to go after bin Laden. And our special. Operations forces. God bless them did just that and they sent out a clear message to the world. That no one attacks the United States of America and gets away with it. The in. Hillary is. Just as determined. To defeat those who threaten us today. License so fired up both over wrong Al sure Bob. Terrorists. Who pervert the teachings of Islam to kill innocent people going about their daily lives. People traveling through airports. In Brussels. And is stumble. Families. Celebrating on the beach front in France. Men and women shopping in a market in Baghdad. And just this week. And 85 year old priest. Whose throat was slit by terrorists. Who stormed his church during mass. These murderers must be stopped. Hillary Clinton is the only Canada. Who is laid out a comprehensive plan. To defeat and to destroy ices. And keep America safe. She is Smart she is principal she is tough and she is ready. Hillary Clinton. Is the single most experienced and prepared person who has ever run for president of the United States. I. And meanwhile. Meanwhile. Donald Trump. Says he gets his foreign policy experience. From watching TV. And running the miss universe pageant. If only. If only it were funny. But it is deadly serious. Donald Trump. NASA our troops to commit war crimes. Endorses torture. Burns our allies. From Europe to Asia suggests that countries have nuclear weapons. Any praise as dictators. From Saddam Hussein to Vladimir move. The MI. I. Today. Today. Only today. Only today let me. Let me point out something that just happened today. Donald Trump. Today. Once again took Russia sign. He asked the Russian. To interfere in American politics. Think about that. Think about that for a moment. Donald Trump. Who wants to be president of the United States. It's asking one of our adversaries. To engage in hacking. Or intelligence efforts against the United States of America. 2 o'clock Doug election. Has someone. Who was responsible for protecting our nation. From cyber attacks. It is inconceivable. To me. That any presidential candidate. Would be that irresponsible. I say this. Part of a firm concerned. For the future of my children and my grandchildren. Donald Trump cannot be become our commander in chief. In an unstable. World. In an unstable world we cannot afford unstable leadership. We cannot afford someone who believes America should withdraw from the world. Threatens our international treaties. And violates our moral principles. We cannot help ward and erratic finger. On our nuclear weapons. There's. This is no time. To roll the dice and to gamble. With America's national security. Or whip the American dream. No time. I've lived. I've lived that American dream. My parents were immigrants from Italy. They came through Ellis Island. They made their way to California. They open a restaurant in Monterey. I can still remembers standing on a chair. In the back of that restaurant. Washing glasses. Never put my immigrant parents his dream. That their son would grow up to be secretary of defense for the most powerful military in the war. The American dream. And. The American dream. The American dream the American dream that we've all been. A part of has been defended every generation. By the brave men and women willing to fight and died for America they are our greatest national treasure. And they deserve a serious commander in chief. Fifth we care about them. If we care about our security we care about our freedoms that we care about the American dream there is only one choice. Hillary Clinton for president of the United States. God bless you.
This transcript has been automatically generated and may not be 100% accurate.