We should ask the obvious question, "Does Russia have enough helium-3 to sell to us?"
The Kremlin created a large arsenal of nuclear weapons and, even this year, mentioned that Russian scientists have perfected a new type of nuclear warhead.
As for why Washington was not prepared for this shortage of helium-3, we need not look further than the shooting at Fort Hood. A large number of government officials were aware that Major Nidal Malik Hasan had likely converted to radical Islam. He was monitored by the FBI, and his colleagues at the university had observed that he often turned class presentations into a tirade against the West.
Yet, no one questioned his allegiance to the United States of America. No one petitioned a military judge to order his arrest.
We Americans failed due to our stupidity, our laziness, and our misguided allegiance to political correctness. We saw all the symptoms of a problem and did nothing until a 100-percent preventable tragedy occurred.
The same will be true of smuggling a nuclear bomb into the USA. We knew, long ago, that we would deplete our reserves of helium-3, but we did nothing to remedy the problem. We will continue to do nothing until a horrible tragedy occurs. (Buddha, help us!)
Barack Hussein Obama, as leader of the United States, personally rejects the idea that a radical Muslim will detonate a thermonuclear warhead in America. He believes that radical Muslims are the victims of Western oppression, so he does not see the need to enhance protection (of our cities) against radical Islam. That he holds such a view is evidenced by the fact that he attended an anti-Western church promoting exactly such a view.
Wafa Sultan, a former Muslim who eyewitnessed the brutality radical Muslims, has repeatedly warned, "[...] because of its multicultural relativism, the Western establishment is still reluctant to openly challenge the dangerous Islamic political ideology." She, not Obama, wholeheartedly embraces Western culture and believes that the West is the victim of Islamic brutality. Read the full text of her speech in Denmark.