Paul Martin : Ms . Palin talks tough on the campaign trail . Martin : Palin has spoken out about many difficult issues . Palin has given only a limited number of answers , Martin says . She has n't been forthcoming on the Alaska ##n investigation , he says .
Roland Martin : Gov . Palin talks tough on the campaign trail . Martin : Palin has ducked questions about many difficult issues . Palin has given only a limited number of interviews , Martin says . Palin has n't been forthcoming on the Alaska ethics investigation , he says .