Trump is so focused on the Islamic Republic that he reportedly kept a document about it that he knew was classified after he left office. With global concern mounting over Iran's nuclear program, his volatility poses serious risk.

The second balloon does not appear to be heading toward the U.S., according to the Pentagon.

Despite the danger, the U.S. "will continue to fly, sail and operate at sea and in international airspace," vowed America's Indo-Pacific Joint Force in a statment.

From the Muslim ban to the family separations at the U.S.-Mexico border, President Donald Trump’s harsh immigration policies have made it harder and more expensive to immigrate or seek asylum in America.