Source: Big Data is big, but still not trustworthy: study
Phi Beta Iota: IBM and the US secret intelligence community share the same intellectual deficiencies — they just cannot come to grips with two facts: a) 80% or more of the data that is online is Deep Web and NOT subject to search discovery in its present state of infantile development; and b) 80% of relevant information is not digital, not in English, and not even published in analog form.
See Also:
21st Century Intelligence Core References 2007-2013