WI: A 9/11 Style Attack Occurred Before the 1980s?

What would happen if a suicide terrorist attack (extremist Muslim or not) such as the hijacking of the four planes on 9/11 took place earlier in history and crashed into landmarks such as the Empire State Building, White House, and others other than those hit in 2001 in jet passenger aircraft between the 1950s and 1980s? What would the cultural, political ramifications from such a shocking and unexpected type of attack occurring earlier in history be?
 
Truly, it depends on the group, their demands, and when it happens. I am going to focus on the case which I find the most interesting.

Let's say that a communist group within the United States gets seriously pissed off about the United States antagonizing the Soviets with Able Archer. In response, they hijack a plane over Chicago, issuing a demand that either the United States stop the Able Archer tests, or they'll fly the plane into the Sears Tower. When an effort is made from the passengers to retake the plane, they decide to crash the plane into the tower without having heard from the US Government.

The US is furious over this, with many viewing this as a Soviet attack on the US homeland. Reagan issues several demands to the Soviet Union which are completely unreasonable, and accordingly rejected, starting World War 3.

I think I made that dystopian enough.
 

Archibald

Banned
In Drew (highly recommended) Fear loathing and gumbo TL, a palestinian terrorist group release sarin gas on July 4, 1976.
 
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