"The current development, especially the deployment of missile-defense systems in East Asia would be, in Chinese eyes, would be a very, very disturbing factor having implications for the calculation of China's nuclear and strategic arsenal, " said Maj.

WSJ: U.S.-China Nuclear Silence Leaves a Void

But as journalists begin to investigate the issue, another, more disturbing factor emerges: LIPA was slow to bring in out of state crews because of union demands that required out of state workers to join Local 1049 of the International Brotherhood of Electrical Workers before they headed for New York.

FORBES: Connect

Another factor may have been the disturbing results of an opinion poll circulating privately among Turkey's army commanders and senior politicians.

ECONOMIST: Turkey and the Kurds

Steenkamp's killing rattled South Africa, not only for the fame factor, but also because the country is grappling with a disturbing problem -- 71% of women report that they've been the victim of sexual abuse.

CNN: February 15, 2013 -- Updated 2043 GMT (0443 HKT)