Moody’s Investors Service downgraded Spain’s credit rating Tuesday and warned that France’s rating could also be at risk, citing both nations’ vulnerability as Europe struggles to manage its persistent debt crisis. In cutting Spain’s rating by two notches, Moody’s said that since it began reviewing the nation’s ratings in July, no resolution to the debt crisis has emerged and that worsening outlooks for global and European growth are hampering Spanish prospects, the Associated Press reported.