In the following video, Motley Fool analyst Lyons George talks about the reasons behind Apple's (AAPL -0.57%) plans to manufacture some of its Mac computers on U.S. soil, beginning with a $100-million investment that will start in 2013.

By looking at the amount of the investment, we can conclude that it's only a toe-in-the-water move by Apple as opposed to a major change in its complex global supply chain, which is heavily concentrated in China. 

Another reason for this announcement may be Apple's efforts to shift attention off their famously high margins from partner companies, like Foxconn (PINK:FXCNY), toward an "at home production" concept.

There is also evidence that such a decision may be more than just a political move by Apple; labor costs in China are on the rise, and last year's tsunami forced companies to reconsider their decisions to produce goods far from their markets. But only time will tell if Apple will decide to bring more production back to the U.S.