History’s most shocking atrocities are defined less by their authoritarian leaders and more by the 'giant blob of enablers' who facilitate them. The current political climate demonstrates this, where professionals and politicians abdicate their expertise and principles to avoid conflict, becoming complicit in the process and allowing destructive ideologies to gain power.

Leaders often conflate seeing a risk with understanding it. In 2020, officials saw COVID-19 but didn't understand its airborne spread. Conversely, society understands the risk of drunk driving but fails to see it most of the time. Truly managing risk requires addressing both visibility and comprehension.

The moving walkway’s popular debut at World's Fairs typecast it as an amusement ride, creating a "magnificently impractical" reputation that prevented government officials from taking it seriously for major urban infrastructure projects like the Brooklyn Bridge.

The book draws a parallel between the behavior of serial killers and the Asarco corporation, which deliberately concealed research, lied to the public, and performed cost-benefit analyses on lead-poisoned children. This frames corporate malfeasance not just as unethical, but as a form of institutional psychopathy.

Extreme wealth inequality creates a fundamental risk beyond social unrest. When the most powerful citizens extricate themselves from public systems—schools, security, healthcare, transport—they lose empathy and any incentive to invest in the nation's core infrastructure. This decay of shared experience and investment leads to societal fragility.

Regulating technology based on anticipating *potential* future harms, rather than known ones, is a dangerous path. This 'precautionary principle,' common in Europe, stifles breakthrough innovation. If applied historically, it would have blocked transformative technologies like the automobile or even nuclear power, which has a better safety record than oil.

The author uses the high-interest genre of true crime to tell a more complex and urgent story about environmental pollution. By embedding environmental history within a serial killer narrative, she engages a broader audience that might otherwise ignore the underlying message about public health and industrial toxins.

Grisham's most pragmatic argument against the death penalty isn't moral but systemic: Texas has exonerated 18 people from death row. He argues that even if one supports the penalty in principle, one cannot support a system proven to make catastrophic errors. This "flawed system" framework is a powerful way to debate high-risk policies.

Author Caroline Fraser's entire inquiry began after seeing a real estate listing that mentioned "arsenic remediation necessary." This seemingly minor detail sparked her curiosity, leading her to uncover massive, overlooked pollution from the Asarco smelter and its potential societal impacts.