The story I am following is about Pfizer's recall of ineffective birth control pills.

http://www.reuters.com/article/2012/02/01/us-birthcontrol-recall-idUSTRE81007G20120201

1) How was such a mistake made?
2) Will women that took the ineffective pill and became pregnant be compensated?
3) Will women who took the ineffective pill and did not become pregnant be compensated?
4) Are other birth control pills developed by Pfizer being investigated for their efficiency?
5) Are the Lo/Ovral-28 tablets, Norgestrel and Ethinyl Estradiol tablets now acceptable?