Why Yahoo needs to lay off a few thousand employees

I just got the following email on my Yahoo account:

Greetings,
I got your contact during my search in international chambers of commerce. I am Mrs. Ngozi Okonjo-Iweala, the Minister of Finance in Nigeria. I sincerely need your very kind assistance to claim and receive fund worth Forty eight million, three hundred thousand us dollars (US$48.300,000)
Source: The sum arose from over-inflated contract awarded by Nigeria Ministry to a foreign firm. We have fashioned out a foolproof plan to successfully transfer the funds to an account belonging to a foreigner for investment purpose, i want to front you as the beneficiary of the fund and 25% will be your compensation for this assistance.
I assure you that there is no risk involve in this transaction because we will perfect the transaction in a way that there will be no trace of the funds to you after the transfer.
Please keep this transaction safe and confidential because my colleagues in the Ministry have trusted me in getting a foreign partner for the transfer of the fund.
We intend to invest our own share in any profitable business in your country based on your advice because our economy is not good enough for investment.
Please If my proposal is acceptable to you, reply as soon as possible.
I await your urgent response.
Best Regards,
Mrs. Ngozi Okonjo-Iweala
Minister of Finance Federal Republic of Nigeria.

Yahoo!! We are in 2012!!! If you are unable to create a spam filter for Nigerian scams then what do you expect ? Really ?

I guess that the news of Yahoo laying off some people should not surprise anybody.