Kahal's tendency to search only for information and evidence that support his perspective illustrates the "Confirmation bias".
Confirmation bias otherwise known as confirmatory bias or myside bias, is the propensity to scan for, translate, support, and review data in a way that affirms one's previous convictions or hypotheses. It is a sort of intellectual predisposition and a deliberate mistake of inductive thinking. Individuals show this inclination when they accumulate or recall data specifically, or when they decipher it biasedly.