Where is the rest of the question
Well, we discovered that we needed to upgrade security so that potential criminals weren't coming into our country, and so potentially harmful substances weren't being brought onto our planes. That meant literally anything that could become a bomb, start a fire, stab someone etc. As for Pearl Harbour, I think that had more of an affect on how we thought our military and defence system was working.
Answer:
Japan modernized its government and economy
Explanation:
after commodore Perry visited Japan he threatened them into trading with America and forced them to have to modernize their government