easy question answer with 1 hour

1.  What does it mean to "pierce the corporate veil"?  Use your own words to describe it.

2.  Describe two potentially negative consequences - to society at large - from the rule allowing a court to pierce the corporate veil under certain circumstances. 

3.  Describe two potentially positive consequences - to society at large - from the rule allowing a court to pierce the corporate veil under certain circumstances.