Those who desire security over liberty, deserve neither.
Security of our nation is done by the second amendment. Everyone has a gun, basically. Our soil can not be invaded by an army, but it can be done through liberal policy of multiculturalism and tolerance.
I wasn't around during the 70s and know very little of exactly what happened. Most of my history education is from the 1950s on back. But your right, I'm assuming. Circumstances have changed.
The Japanese are a parliamentary country that generally has a separation of church and state... And has been that way pretty much since the end of WW2. The problem with middle eastern countries is that they often mix religion and government. Just like the Bible has some verses (Deuteronomy 17) in the old testament that discusses killing of non-believers, the Koran also has such speech in it and is often not overlooked as an unnecessary part of their holy book. Their governments are often ruled by Imams, which are religious zelots that dictate fatwas - or religious laws, collectively known as sharia law. If your a Muslim, you believe in the Koran and you abide by Sharia Law.
In America, we have a constitution and freedom of religion and a separation of church and state. We do not have the ability as a country to fight a war against a pervasive, extremist part of a religion that is rooted deeply in one of the most popular religions on Earth.
Muslims are using our laws and our free society to their advantage. They are using political correctness to invade our boarders. They are breeding in large numbers. The thing is, we are so tolerent of people now, that there will not be a single shot fired.... We will simply be bred out over time. Muslims tend to play the long game.