Tuesday is the latest move by the Obama administration to make immigration policy changes in lieu of Congress enacting real reform. Easing restrictions on a relatively small number of very specifically skilled, foreign-born workers might not be exactly what immigration reform advocates, who have been calling on Obama to make deportation policies more humane, were looking for. But given Congressional Republicans’ likelihood to kill comprehensive immigration reform at the first sign of any executive action that might be perceived as weakening border security, the proposed changes announced Tuesday seem carefully, and cleverly, calculated.