Final answer:
Lincoln's suspension of habeas corpus during the Civil War allowed for the arrest and detention of individuals suspected of pro-Confederate sympathies without a reason. The Habeas Corpus Suspension Act signed by Lincoln in 1863 granted him the power to detain suspected Confederate operatives across the Union, resulting in the arrest of thousands of people. This suspension also led to the closure of newspapers as a measure of national security.
Step-by-step explanation:
During the Civil War, President Abraham Lincoln suspended habeas corpus rights as a way to ensure the safety of the Union. The result of this suspension was that people suspected of pro-Confederate sympathies could be arrested and held without being given a reason.
Lincoln signed the Habeas Corpus Suspension Act in 1863, giving him the power to detain suspected Confederate operatives throughout the Union. As a result, thousands of people were arrested, and the government also closed down newspapers as a national security measure.