Klein's basic argument is that economic liberalization is so unpopular that it can only win through deception or coercion. In particular, it relies on crises. During a natural disaster, a war, or a military coup, people are disoriented, confused, and preoccupied with their own immediate survival, allowing regimes to liberalize trade, to privatize, and to reduce public spending with little opposition. According to Klein, "neoliberal" economists have welcomed Hurricane Katrina, the Southeast Asian tsunami, the Iraq war, and the South American military coups of the 1970s as opportunities to introduce radical free market policies. The chief villain in her story is Milton Friedman, the economist who did more than anyone in the 20th century to popularize free market ideas.