Disbelief is wrong "Zulm" in Islam Zulm is an act of agression.How are the folks in the WTC considered hostile?
2:193. And fight them until there is no more Fitnah (disbelief and worshipping of others along with Allâh) and (all and every kind of) worship is for Allâh (Alone).[] But if they cease, let there be no transgression except against Az-Zâlimûn (the polytheists, and wrong-doers, etc.)
The Noble Quran : Surat 2
Is it just me, or does the Quran appear to be littered with contradictions?
There are several only one of concern to non muslims .
2:256. There is no compulsion in religion. Verily, the Right Path has become distinct from the wrong path. Whoever disbelieves in Tâghût[] and believes in Allâh, then he has grasped the most trustworthy handhold that will never break. And Allâh is All-Hearer, All-Knower.
Uttered in 614 AD
2:193. And fight them until there is no more Fitnah (disbelief and worshipping of others along with Allâh) and (all and every kind of) worship is for Allâh (Alone).[] But if they cease, let there be no transgression except against Az-Zâlimûn (the polytheists, and wrong-doers, etc.)
uttered in 627 AD
This clarifies Islam position on disbelievers
Tafsir.com Tafsir Ibn Kathir
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Islam Question and Answer - There is no compulsion to accept Islam
Tafsir.com Tafsir Ibn Kathir