My fellow Americans, we are and always will be a nation of immigrants. We were strangers once, too. And whether our forebears were strangers who cros… - Barack Obama

Our nuclear power plants have undergone exhaustive study, and have been declared safe for any number of extreme contingencies. But when we see a crisis like the one in Japan, we have a responsibility to learn from this event, and to draw from those lessons to ensure the safety and security of our people. That’s why I’ve asked the Nuclear Regulatory Commission to do a comprehensive review of the safety of our domestic nuclear plants in light of the natural disaster that unfolded in Japan.

I’ve instructed Secretary Kerry to immediately begin discussions with Cuba to reestablish diplomatic relations that have been severed since January of 1961. Going forward, the United States will reestablish an embassy in Havana, and high-ranking officials will visit Cuba. Where we can advance shared interests, we will — on issues like health, migration, counterterrorism, drug trafficking and disaster response. Indeed, we’ve seen the benefits of cooperation between our countries before. It was a Cuban, Carlos Finlay, who discovered that mosquitoes carry yellow fever; his work helped Walter Reed fight it. Cuba has sent hundreds of health care workers to Africa to fight Ebola, and I believe American and Cuban health care workers should work side by side to stop the spread of this deadly disease. Now, where we disagree, we will raise those differences directly -– as we will continue to do on issues related to democracy and human rights in Cuba. But I believe that we can do more to support the Cuban people and promote our values through engagement. After all, these 50 years have shown that isolation has not worked. It’s time for a new approach.

And finally, let's remember that our leadership is defined not just by our defense against threats but by the enormous opportunities to do good and promote understanding around the globe, to forge greater cooperation, to expand new markets, to free people from fear and want. And no one is better positioned to take advantage of those opportunities than America. Our alliance with Europe remains the strongest the world has ever known. From Tunisia to Burma, we're supporting those who are willing to do the hard work of building democracy. In Ukraine, we stand for the principle that all people have the right to express themselves freely and peacefully and to have a say in their country's future. [...] We do these things because they help promote our long-term security. And we do them because we believe in the inherent dignity and equality of every human being, regardless of race or religion, creed or sexual orientation. [...] My fellow Americans, no other country in the world does what we do. On every issue, the world turns to us, not simply because of the size of our economy or our military might but because of the ideals we stand for and the burdens we bear to advance them.