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What is FISA? The Foreign Intelligence Surveillance Act, or âFISAâ, is the law that creates procedures for spying on foreign targets by our intelligence community. It allows organizations like the NSA, CIA, and FBI to gather intel by physical and electronic surveillance.
Measurement system analysis. A measurement systems analysis (MSA) is a specially designed experiment that seeks to identify the components of variation in the measurement. Just as processes that produce a product may vary, the process of obtaining measurements and data may have variation and produce defects.