NY Daily News
On this, the fourth anniversary of the destruction of New Orleans, let us resolve to replace the political heat of accusation with the penetrating light of reason.

The single most important thing to know is that the city remains vulnerable to another big hurricane strike. Its flood protection system must be completely re-engineered, a project that will cost billions.

It takes work to think the matter through. Like many who fell in love with pre-Katrina New Orleans, I find it hard to avoid getting carried away by sadness and rage.

In honor of the anniversary: