Twelve members of Congress are seeking answers from the U.S. Forest Service after federal immigration agents arrested five men during a family camping trip at Mount Baker-Snoqualmie National Forest over Labor Day weekend. The men, described as Snohomish County fathers and family members, were arrested Sept. 5. The lawmakers’ questions concern the immigration enforcement operation and the Forest Service’s role or knowledge of it; details of the specific questions were not available. The inquiry puts federal agencies’ conduct on public lands under scrutiny and raises questions for Washington families about how immigration enforcement can affect ordinary activities such as camping. No response from the Forest Service was included in the information available.