For decades, Corsican separatists protesting French control of the island have attacked symbols of French influence in the middle of the night, but lately, since the July conviction in Paris of eight Corsicans in the 1998 killing of a French Corsican official, they switched tactics and are now attacking during the day. No one has yet been injured in the almost-daily attacks, but many feel itÂ’s just a matter of time. French officials are worried and are planning to tighten security, warning of a crackdown.