I was gratified to hear that Langley decided to not approve a "sanctuary city" resolution.  This is a hot button issue, and the city council ought to have  put it to the voters, where they might have found that a majority of the citizens of Langley were opposed.  A recent Rasmussen poll found that approximately 80% of American voters oppose sanctuary cities.  
Personally, I cannot comprehend why the Langley city council would even consider providing sanctuary to criminals who are not citizens, and not provide the same to criminals who ARE citizens.  Because illegal immigrants are criminals, by definition.  Title 8, Section 1325 of the U.S. Code (U.S.C.), and Section 275 of the Immigration and Nationality Act (I.N.A.) provide both criminal (incarceration) and civil sanctions to persons illegally entering the U.S. By creating a sanctuary city Langley would be abetting criminals, a felony under RCW 46.64.048.