▁two - ele vent hs ▁of ▁the ▁research ▁staff ▁at ▁Cad ar ache ▁and ▁be ▁awarded ▁two - ele vent hs ▁of ▁the ▁construction ▁contract s , ▁while ▁the ▁European ▁Union ' s ▁staff ▁and ▁construction ▁components ▁contributions ▁will ▁be ▁cut ▁from ▁five - ele vent hs ▁to ▁four - ele vent hs . ▁ ▁It ▁was ▁reported ▁in ▁December ▁ 2 0 1 0 ▁that ▁the ▁European ▁Parliament ▁had ▁refused ▁to ▁appro ve ▁a ▁plan ▁by ▁member ▁states ▁to ▁real loc ate ▁€ 1 . 4 ▁billion ▁from ▁the ▁budget ▁to ▁cover ▁a ▁short fall ▁in ▁I TER ▁building ▁costs ▁in ▁ 2 0 1 2 – 1 3 . ▁The ▁closure ▁of ▁the ▁ 2 0 1 0 ▁budget ▁required ▁this ▁finan cing ▁plan ▁to ▁be ▁re vised , ▁and ▁the ▁European ▁Commission ▁( EC ) ▁was ▁forced ▁to ▁put ▁forward ▁an ▁I TER ▁budget ary ▁resolution ▁proposal ▁in ▁ 2 0 1 1 . ▁ ▁The ▁U . S . ▁with d rew ▁from ▁the ▁I TER ▁cons ort ium ▁in ▁ 2 0 0 0 . ▁In ▁ 2 0 0 6 , ▁Congress ▁voted ▁to ▁re join , ▁and ▁again ▁contribute ▁finan cially . ▁ ▁Crit ic ism ▁ ▁A ▁technical ▁concern ▁is ▁that ▁the ▁ 1 4 ▁Me V ▁neut rons ▁produced ▁by ▁the ▁fusion ▁re actions ▁will ▁damage ▁the ▁materials ▁from ▁which ▁the ▁re actor ▁is ▁built . ▁Research ▁is ▁in ▁progress ▁to ▁determine ▁whether ▁and ▁how ▁re actor ▁walls ▁can ▁be ▁designed ▁to ▁last ▁long