Are people legally coming to the U.S. such an issue? It's not so much that people are coming, but where they're coming from.

Top ten largest US immigrant group [by decade]([http://www.migrationpolicy.org/programs/data-hub/charts/largest-immigrant-groups-over-time]);

(1960)

• 12.9% italy
• 10.2% germany
• 9.8% canada
• 8.6% UK
• 7.7% poland
• 7.1% soviet union
• 5.9% mexico
• 3.5% iceland
• 3.1% austria
• 2.5% hungary

(1970)

• 10.% italy
• 8.7% germany
• 8.4% canada
• 7.9% mexico
• 7.1% UK
• 5.7% poland
• 4.8% soviet union
• 4.6% cuba
• 2.6% ireland
• 2.2% austria

(1980)

• 15.6% mexico
• 6.0% germany
• 6.0% canada
• 5.9% italy
• 4.8% UK
• 4.3% cuba
• 3.6% philippines
• 3.0% poland
• 2.9% soviet union
• 2.1% korea

(1990)

• 21.7% mexico
• 4.6% philippines
• 3.8% canada
• 3.7% cuba
• 3.6% germany
• 3.2% UK
• 2.9% korea
• 2.9% italy
• 2.7% china
• 2.7% vietnam

(2000)

• 29.5% mexico
• 4.4% philippines
• 3.3% india
• 3.2% china
• 3.2% vietnam
• 2.8% korea
• 2.8% cuba
• 2.6% el salvador
• 2.6% canada
• 2.3% germany

(2010)

• 29.3% mexico
• 4.5% india
• 4.4% philippines
• 4.0% china
• 3.1% vietnam
• 3.0% el salvador
• 2.8% cuba
• 2.8% korea
• 2.2% dominican republic
• 2.1% guatemala