What significant tragic happened during the world wide web?

What significant tragic happened during the world wide web? Explain the ethical aspects revolving around this incident. How did it impact people being able to move on with their lives. 

1. What actions of people and organizational leaders directly and indirectly involved with the tragedy, also, what are the ethical issues that the World Wide Web faced. 
2. What were some of the actions of local, state and federal personnel with respect to dealing with the World Wide Web tragedy? 
3. Explain the strategies World Wide Web attempted to assist with their clean-up after the tragic event. Describe several of the pressures that influenced their strategies. Distinguish between social responsibility, integrity and simple business ethics. 
4. How did this event affected the ethical culture here in the United States? What other affect has it had on society as a whole?