The US Justice Department has announced it will be filing a lawsuit to block JetBlue Airways' proposed $3.8 billion acquisition of Spirit Airlines, citing concerns that it would reduce competition and lead to higher prices for consumers. The Biden administration has been vocal in its stance that there needs to be greater competition between businesses, especially in the airline industry, to lower costs for consumers. The lawsuit is the first time in more than 20 years that the government has sought to block a US airline merger.