How much power can a president wield to ensure national security?

At first, Nixon refused to hand over the tapes, pleading executive privilege, the principle that White House conversations should remain confidential to protect national security.

Explanation:

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation:

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