We need to recognize that guest worker programs, if not properly implemented, may hurt American workers. We also need to recognize that our success with regard to the temporary guest worker programs we now have, such as with regard to agricultural workers, has been mixed at best. We should not err on the side of extravagance in allocating these visas until we know how the program impacts American workers.There are a variety of jobs that may be filled by guest workers, from construction to hotel service, and we shouldn’t be placing American workers in these sectors in the position of competing with an unlimited number of guest workers.