24 powerful and moving photos from the September 11 attacks that Americans will never forget

8:22am PDT - September 11th, 2018    twin towers - Business Insider

It's been 17 years since the attacks of September 11, 2001. But for millions of Americans, haunting memories of that day are still fresh, and many lives were changed forever. On 9/11, terrorists hijacked four planes and were able to crash two of them into the…