My opinion:

1) No, in fact it would probably be better to inform them after the fact, it's better to beg for forgiveness than to ask for permission when it comes to Congress.

2) Doubtful, the government has been funding the research and development of "black ops" for years and concealing the funding by inflating other aspects of the budget. For example, they could simply increase NASA's budget without specifying the exact project to be funded.

3) No because the UN would finally come to a decision to take action 30 seconds AFTER impact.

4) Yes, FEMA developed the plan, the details of which are being guarded by TSA employees and the whole thing falls under the Department of Homeland Security for execution.