Final answer:
Treason is the only crime expressly mentioned in the Constitution because it is a crime against the country.
Step-by-step explanation:
Treason is the only crime expressly mentioned in the Constitution because it is a crime against the country. The Founding Fathers understood the grave threat treason poses to the stability and security of a nation. By including treason as an explicitly defined crime, they wanted to ensure that acts of betraying the country would be punishable under the law. It serves as a deterrent and a means to protect the government and the nation from potential harm.
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