washington u.s. missile defense agency mda say friday drop site redington township maine list potential u.s. sit deploy ground-based missile defense interceptors addition alaska california agency say potential sit new york michigan ohio remain consideration stress decision make deploy construct additional site mda say decision make extensive survey potential maine site center security force detachment kittery survival evasion resistance escape facility sere east maine site present irreversible environmental impact significant constructability concern extensive cost associate develop infrastructure remote area mda say statement pentagon say january 2014 would conduct environmental impact study four possible missile defense sit line directive congress 2013. missile defense agency reiterate friday current interceptors west coast would able defend country missile attack countries north korea iran u.s. lawmakers express concern iran efforts develop intercontinental ballistic missiles mda say complete require site study environmental impact statements would shorten timeline build site decision make future proceed kingston reif director disarmament threat reduction policy nonprofit arm control association say remain three environmental impact study due complete end fiscal year 2016 end sept. 30. riki ellison founder nonprofit missile defense advocacy alliance say maine site likely deem far north provide protection sit central unite state pentagon drop maine list potential missile defense sit