When terrorists attacked us, we went to war with 2 countries. One of those countries, we spent 20 years in, trillions of dollars, hundreds of thousands of lives lost, and they're worse off than before.
When terrorists attacked China, they decided to put all of their Islamic-extremist-prone population in internment camps to "re-educate them".
It seems far cheaper to do the China way to me.
By the way, no country ever sanctioned the U.S. for doing what we did to Afganistan. Meanwhile, all the west wants to sanction China.