Jonathan Haidt 3: How common threats can make common (political) ground

TEDSalon NY2012
Jonathan Haidt 3: How common threats can make common (political) ground  (transcript)
Summary
I feel that a man is stupid. There have already been many problems in the world though we can't cooperate to solve them.  Even if we have morality, it makes us blind to objective reality but it makes us polarize. This is our current society that are like liberals and conservatives. In fact, people have different feelings, even if they see the same things.
However, the speaker suggests that we start by looking for common threads. It is because common ground is often very hard to find, common threats make common ground and there are some examples that both sides work together to solve big threads that are poverty, AIDS, and the justice system. Thus he tells us that we must cooperate, there are many threads in the world.
I think that we must not mistake the threads to decide, please. It's because it reminds me of the problem about South Korea and Japan. The country tells all citizens the thread is Japan. They have other big threads but South Korea and Japan have to cooperate to solve it. People have to know that they don't have time to think.
I think that we shouldn't make a mistake to let the threads decide, please
Words in this story
conservative / a person who is averse to change and holds to traditional values and attitudes, typically in relation to politics.
liberal / a person of liberal views.
democracy / a system of government by the whole population or all the eligible members of a state, typically through elected representatives.