Even when semi-autonomous driving capability is available on vehicles, the system will have operational limitations based on external factors such as weather and visibility of lane markings.

ENGADGET: Cadillac road tests self-driving Super Cruise tech, could hit highways by mid-decade

The guide, released Monday, analyzes technology companies on operational efficiency and commitment to the environment based on factors including green products and efforts to reduce greenhouse gas emissions, said Casey Harrell, IT analyst at Greenpeace.

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While wartime capacity and routine operational presence are very important, they are not the only factors defining the need for eleven aircraft carriers.

FORBES: Why Does The United States Only Have Eleven Aircraft Carriers?

Earnings reports opened the season this week with a perhaps less than enthusiastic tone that some were expecting, as companies reported soft sales, offsetting factors like higher costs, and several cases of increased operational spending that were met with a slew of questions from analysts.

FORBES: Weekly Earnings Wrap-Up: GOOG, SVU, Financials