We reject the use of national security letters to spy on citizens who are not suspected of a crime.

To resolve this issue will require Iran to come to the table and discuss in a clear and forthright way how to prove to the international community that the intentions of their nuclear program are peaceful. [...] The question is going to be whether in these discussions they show themselves moving clearly in that direction.

There is enough oil out there for world demand. It is true that a lot of what's driving oil prices up right now is not the lack of supply. There's enough supply.

Long before being nerdy was cool, there was Leonard Nimoy. Leonard was a lifelong lover of the arts and humanities, a supporter of the sciences, generous with his talent and his time. And of course, Leonard was Spock. Cool, logical, big-eared and level-headed, the center of Star Trek’s optimistic, inclusive vision of humanity’s future. I loved Spock.

To look at long term trends in our economy, in our society, in the international sphere and using my best judgment, shape policies that will serve the American people, keep them safe, keep our economy growing, put people back to work.

The Iranian regime supports violent extremists and challenges us across the region. It pursues a nuclear capability that could spark a dangerous arms race and raise the prospect of a transfer of nuclear know-how to terrorists. Its president denies the Holocaust and threatens to wipe Israel off the map. The danger from Iran is grave, it is real.

Scientists and engineers ought to stand side by side with athletes and entertainers as role models.