I believe that a mission to Mars should be a global priority because "space races" are a catalyst for growth in many other sectors, creating new technology that can be used by the military, the medical field, and private businesses. I also believe that having something that we are striving to achieve globally could encourage and teach nations to work better together.
Right now a mission to Mars is not technically feasible. Scientists predict that a mission would likely kill all the astronauts involved, and they might not even reach Mars. Right now, we should use our resources on more pressing matters, like providing healthcare to the poor and developing third world countries.