The city of San Diego is suing the federal government for building razor wire fencing on city land near the Mexican border, arguing that the fence damages sensitive habitat and trespasses on city property. “The City of San Diego will not allow federal agencies to disregard the law and damage city property,” City Attorney Heather Ferbert said in a statement. The Department of Homeland Security didn’t respond to questions from CalMatters, and neither agency has filed responses to the lawsuit yet. The most high-profile conflicts have concerned the use of National Guard and active duty military in California cities. In December a federal judge ordered the National Guard to leave Los Angeles and return to Gov.