CNN  —  Kilmar Abrego Garcia – the man mistakenly deported to a Salvadoran prison then brought back to the US only to face a criminal human smuggling indictment – has been held out by the Trump administration as an example of the danger of having undocumented immigrants in the US. Yet amid the political, diplomatic and court standoff, parts of the Justice Department’s criminal case against Abrego Garcia appears to be so tenuous that a federal magistrate judge in Tennessee strongly questioned