Padilla case

Many Americans did not realize that this option could be applied to American citizens. As the Padilla case (https://www.nyclu.org/en/cases/padilla-v-bushhamdi-v-rumsfeld-challenging-detention-us-citizen-without-charges-or-trial.) highlighted, the president wielded power to take any American into custody as an enemy combatant terrorist and treat him accordingly. What is your opinion on this power?