Dwight Eisenhower's experience with Cold War containment was born directly from the Second World War, in the sense that his objectives seemed very clear. By the time Nixon came to office, it was less clear about how the US should deal with the USSR, and it showed in Nixon's policies.
The Federal Government receives finding from taxes coming out of salaries, which is called income tax. In the US especially, taxes contribute to the funding of Medicaid and social security benefits.
Internal terrorism and external terrorism both pose a great threat, but terrorism carried out by the United State's own citizens can be much more harmful in the long run. My favorite quote about this is nerdy, but it's from Captain America: Civil War and is stated by the true antagonist of the movie, "An empire toppled by its enemies can rise again. But one which crumbles from within? That's dead... forever." We as a people can rally against an outside threat and rise from whatever they may do to us, but we become exponentially weaker if we must rally against those within our own borders. That's just kinda my opinion.
