why did proponents of the torture memo believe that waterboarding was an acceptable interrogation technique?

they argued that waterboarding was used in multiple conflicts throughout the twentieth century.

they argued that waterboarding was not considered torture in countries like iraq, so could be used by the united states.

they argued that the president had the authority to do whatever he deemed necessary to get information in the global war on terrorism.

they argued that congress had not specifically outlawed waterboarding, so it should be upheld as a useful tactic.

The answer would be: they argued that the president had the authority to do whatever he deemed necessary to get information in the global war on terrorism. There are many proponents of the “Enhanced Interrogation” methods, which they believed to allow them to gain information.

the great wall of china worked as a defense for the feudal states of the zhou dynasty to the north. during the warring states period more walls were put up to defend the borders of the different kingdoms. it was semi successful because despite the wall, the mongols eventually conquered china also the great wall provided protection to the economic development and cultural progress, safeguarded the trading routes such as the silk road, and secured transmission of information and transportation. @jayxboof