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However , that would still require a piece of MOM infrastructure be on both sides of the wire to handle behavior such as acknowledgement of receipt , message persistence , and recovery from failure . Other than those ( which are a good example of why we need pre-processing to handle markup ) , are the high frequency words what you would expect ? To support these services , new drivers may get special training in how to handle wheelchair lifts and other mechanical devices . Historian Clark G. Reynolds has noted that the Navy ’ s Bureau of Aeronautics was “ woefully unprepared ” to handle wartime production and training . They 'll need to know how to handle radiation levels outdoors in the " martian wilderness " - - an environment MARIE will probe from Mars orbit .