Mitt Romney uses "I Didn't Know Defense"

Seriously?  The news digs around every single candidate they can to find information that could be publicly damaging simply to see them squirm.  Many will come out with this reason or that for the findings buried within their history, but every so often some of them come out and just say "I didn't know!" emphatically through one of their spokepersons until they are cornered and have to say it for themselves. 
Mitt Romney was just tied to a Chinese security firm contracted to place cameras pretty much everywhere there could be potential gatherings in protest against the Communist giant.  Of course, the official reasoning is to keep things safe and catch  criminals, but with China's history of human rights violations the definition of criminal is a little fluid.
The firm in question was purchased by Bain Capital, a firm which Romney started.  Further, some of his capital is actually tied up in the moneys used to purchase the firm.  Albeit, Romney might not have technically known how the funds were used, it is his responsibility to know what his mass riches are tied up in.  Thereby, the infamous "I didn't know" line is invalid. 
I mean, think about it, is this a value you want in your next president?  Shouldn't the man know exactly what his money is tied up in?  It would have been better to come out and say, "yes, I own stake in this company, however, I do not function in its day to day business and thereby was not aware of the potential for HR violations" or some facsimlie thereof.  He could easily spin it to one of awareness and revulsion and then publicly seperate himself from the company.  Instead he just throws up his hands in a childish manner, looking up at his mommy and says "I didn't know that was bad"
These potential nominees need to get a grip.  Realize that we need strong leadership, not 50 year old children.  But instead, they are ALL so damned defensive that even if the Republicans had a strong candidate, their would still be question as to their value and worth because they have all done the shoulder shrugging technique. 
Ironic, this candidate has accused the President of placing the dollar over chinese human rights, yet that is EXACTLY what he does when he just turns a blind eye and says "I Didn't Know!"
Just an Old Soldier Ranting.

Forgot to mention, the article was a NYtimes article as posted through MSNBC