Under President Bush North Korea threatened to launch missiles and build nuclear weapons, but they were never this cocky.  Under President Bush we had North Korea agree to:

North Korea had stopped reprocessing fuel rods as part of an international deal. In 2007, it agreed to disable the Yongbyon reactor in exchange for aid and demolished a cooling tower at the complex.

Under President Obama – a huge critic of the Iraq war:

 North Korea launched a tirade Wednesday against world powers threatening to punish it for conducting its second nuclear test, saying it is not afraid of sanctions and calling South Korea's decision to join an operation to prevent the spread of weapons a declaration of war.

The North also has reportedly restarted its weapons-grade nuclear plant. It staged a rally in its capital, Pyongyang, on Tuesday to celebrate the test.

The isolated communist regime said through its official news agency that it would respond with military action if South Korea tries to stop or search any of its ships as part of the U.S.-led Proliferation Security Initiative.

"Those who provoke (North Korea) once will not be able to escape its unimaginable and merciless punishment," the North's official news agency said.

The North has about 8,000 spent fuel rods which, if reprocessed, could allow it to harvest 13 to 18 pounds (six to eight kilograms) of plutonium — enough to make at least one nuclear bomb, experts said. North Korea is believed to have enough plutonium for at least a half dozen atomic bombs.

Further ratcheting up tensions, North Korea has test-fired five short-range missiles over the past two days, South Korean officials confirmed.

North Korea suggested that more missile tests could be planned, telling ships to stay away from waters off its west coast through Wednesday, according to South Korea's coast guard.

Oi Vey!  So, what is the international response?  The same group of people that said Saddam Hussein shouldn’t have been forcefully removed:

In New York, the U.N. Security Council is discussing a resolution that could include new sanctions.

Oops, they must have missed this statement:

North Korea launched a tirade Wednesday against world powers threatening to punish it for conducting its second nuclear test, saying it is not afraid of sanctions…..     

So, what does North Korea think about the U.S. now:

A North Korean newspaper, Minju Joson, said in a commentary Wednesday that Pyongyang does not fear repercussions.

"It is a laughable delusion for the United States to think that it can get us to kneel with sanctions," it said. "We've been living under U.S. sanctions for decades, but have firmly safeguarded our ideology and system while moving our achievements forward. The U.S. sanctions policy toward North Korea is like striking a rock with a rotten egg." You see, you show weakness, and our enemy’s push and push and push.  Remember what happened with Libya after we got into Bagdad so quickly.  They agreed to stop all WMD programs and agreed to pay $3 billion in compensation to the families of Pan Am flight 103 and UTA Flight 772.

Show strength, we are a safe world.  Show weakness and this happens.  President Obama is in a long list of world leaders that have been elected recently and have shown weakness so North Korea, among other countries, is no longer afraid of us.  Our leaders have the people believing that we can resolve problems with crazy dictators without force. 

These dictators don’t care about what happens to their people.  Look at what Hussein did – how many mass graves and video tapes of extreme torture were found.  Kim Jong Il has already shown disrespect for his people who are on average 2 inches shorter than the average South Korean.  This is called severe growth retardation and it happens when a group of people are malnourished for extended periods of time.  In 1948 – before Korea split in two, North and South Koreans were the same size. 

While we are all worried about not being too mean to people that are trying to kill all of us, other countries are taking advantage of our weakness and are encouraging war.