Given the Target and Argument texts detect the stance that the argument has towards the topic. There are three types of stances "in favor", "against", and "neutral". 
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Question: Topic: Carbon emissions trading
 Argument: US cap-and-trade in sulfur dioxidew was succesful.

Answer: in favor


Question: Topic: Assault weapons ban in the United States
 Argument: The 1994 US assault weapons ban significantly decreased use.

Answer: in favor


Question: Topic: Full-body scanners at airports
 Argument: Body scans will make many children and parents uncomfortable.

Answer:
against


