Write an inquisitive question about a specific text span in a given sentence such that the answer is not in the text.

Let me give you an example: Sentence: The Obama administration is developing additional screening protocols for airline passengers both overseas and in the United States to control infectious diseases such as Ebola, President Barack Obama said Monday .<sep>Span: Obama administration
The answer to this example can be: What was the duration of the Obama administration?
Here is why: It is an inquisitive question based on the specific span of the sentence.

OK. solve this:
Sentence: California and New York still lure hundreds of thousands of immigrants from across the globe , but Texas , Florida , Colorado and the Carolinas are far more magnetic for people already living in the country , according to new estimates released Thursday by the U . S . Census Bureau .<sep>Span: magnetic
Answer:
why are these states magnetic?