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.
The answer is <span>cities my dude
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Answer:
D
Explanation:
Many things began to change and develop before the great depression. Flappers, the Charleston, and Jazz all were some of the shining examples of cultural change in America. Speakeasies were open, Roads were paved, and a swift sweep of culture was had.
