Acting Homeland Security Secretary Chad Wolf on Feb. 20 waived federal contracting rules to expedite construction of the U.S-Mexico border wall in California, Arizona, New Mexico and Texas, citing legal authority under several U.S. laws, some dating back to the 1990s, to deal with what he claimed is "an acute and immediate need to construct physical barriers and roads ... to prevent unlawful entries."
But the move, set to affect about 177 miles of border wall, raised concerns about how contractor work and accountability will be kept in check.