Analysis: Should you buy the new iPhone 5?

After months of speculation and rumors that often precede new Apple products, the iPhone 5 has arrived. And with pre-orders set to begin Friday, the question is: Should you buy one?

Mexican hackers attack political, official sites

(AP)—Mexican hackers have taken over more than a dozen websites belonging to political parties and local governments and posted a message criticizing the government on the nation's Independence Day.

Reversible method of tagging proteins developed

Chemists at UC San Diego have developed a method that for the first time provides scientists the ability to attach chemical probes onto proteins and subsequently remove them in a repeatable cycle.

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