How Honest is Krugman?

In yesterday's column, Krugman said:

That's why it's intellectually dishonest to say, as President Bush does, that immigrants do "jobs that Americans will not do."

He goes on to devote an entire column to the advantages and disadvantages of allowing immigration without mentioning the effect on our cost of living and inflation.

Low wage immigrants reduce costs of: food, health care, construction, car washes and other goods and services.

As consumers, we benefit enormously from the waves of low-labor-cost immigrants.

Krugman, as an economist understands this better than most people. Yet he never mentions it.

He accuses others of being dishonest. How honest is Krugman?