The US has repeatedly squandered opportunities to make the world less vulnerable to nuclear destruction.

The article has a certain one-sidedness, as is often found in articles whose main point is to criticize the US. For instance, it tries to suggest that the US was in the wrong in planning for war with Japan in 1941 (though nothing forced Japan to start that war). Japan in 1941 was in the process of conquering China by means of a stream of atrocities; that's why the US stopped selling Japan the materials Japan needed in order to continue that conquest.