         entence: 12" This will ptit a’seyere crimp  inn our reserves“, © ‘Keefe. ‘said. Friday.  luting ‘a. roundtable « ‘discussion -: with  eporters.:at NASA headquarters.               entence.2:" This 18 going to-put a:severe  imp. in our reserves’ ;-" Or 'Keefe said  uring a bréakfast with reporters.    