Remember the national "Day Without Immigrants," held more than a year ago? Legal and illegal immigrants left their jobs in the fields, at factories, and at restaurants for a day, giving Americans a peek at what our nation would look like without their labor. In workplaces around the country, this dry-run has become a reality, as ICE raids round-up illegal immigrants, and the mere threat of raids has still more headed back over the border. To some, this shows immigration policy has been successful, but on a more concrete level, businesses are losing a reliable workforce and struggling to replenish it. Have you noticed a difference at work, or at the businesses you patronize?