This is a qualitative study of Intelligence Management mechanism, documenting (three cases) information obtained through secondary sources. The devastating attack of Pearl Harbour, 9/11 and 26/11 jolted the world out of its slumber. It left the entire nation reeling in deep grief and desolation. We were facing significantly different enemies in 1941, 2001 and 2008. During World War II Japan was a powerful nation with a large navy, as well as the support of Germany and Italy, while Al-Qaida and Pakistani terrorists had “no navy, no organized army, and no air force.” However, the absence of such resources did not prevent the shadowy terrorists organization from inflicting the damage of 9/11 and 26/11. The comparisons between the three dates dealt not only with the attacks themselves, but also how the people responded to them. All three instances have a common thread. All of them showed a singular lack of intelligence. But the redeeming feature is that it mobilized the public opinion against the politicians and their apathy towards security. It also over emphasized the need for an agency which can coordinate the collection, collation and distribution of intelligence in order to ensure that such instances are avoided at all costs.