Barack Obama actually said...

"the greatest danger to the American people is the threat of a terrorist attack with a nuclear weapon and the spread of nuclear weapons to dangerous regimes."

"The gravest danger to the American people is the threat of a terrorist attack with a nuclear weapon and the spread of nuclear weapons to dangerous regimes."

"The threat of global nuclear war has gone down, but the risk of nuclear attack has gone up."

"We'd been falling behind and now we are back at the forefront of [research and development]. We made the largest investment in green energy in our history so that we could start building solar panels ..."