Sir, I applaud your editorial "Learning to swim in the modern economy. Not everyone is getting richer. That poses risks for us all" (March 24) for not only addressing income inequality but also calling for political debate to focus more on economic mobility and opportunity.

Here in the US, the concept of the American Dream is elemental to the national spirit, yet recent polling suggests that more than half of Americans believe the American Dream has become impossible for most people to achieve.

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Hard work and economic opportunity must remain not just a theme but a real character in the enduring American story.

John E. Morton,

Director, Economic Mobility Project, The Pew Charitable Trusts

Read the full article at ft.com.