1.   Cheap labor, in fact, has been a catalyst for a boom that has enriched this country.

2.   Historically, immigrants have enriched our country.

3.   I pointed out that immigrants traditionally have enriched this country.

4.   I pointed out that immigrants have enriched this country.

5.   The Malaysian finance minister Wednesday warned that trade globalization and reliance on market forces could enrich strong countries and leave poorer nations marginalized.