Do you think atomic bombs should be considered an option for modern warfare?

No. They have unacceptable humanitarian consequences and pose a threat to humanity. The simple reality is that the international community could never hope to deal with the impact of nuclear weapons use. It is not necessary . Militarily Japan was finished (as the Soviet invasion of Manchuria that August showed). Further blockade and urban destruction would have produced a surrender in August or September at the latest, without the need for the costly anticipated invasion or the atomic bomb.

This is also a question asking for your opinion, so there is no right or wrong answer.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.