BERLIN—German police are investigating a bomb from Greece that was delivered Tuesday to the office of Chancellor Angela Merkel, hours after additional package bombs exploded outside foreign embassies in Athens. Also Tuesday, a cargo plane from Athens carrying a suspicious parcel addressed to Italian Premier Silvio Berlusconi made an emergency landing in Italy. German police defused the small bomb, and nobody was injured in any of the incidents Tuesday. Ms. Merkel wasn't in Berlin at the time. . Greek police intercept and destroy three mail bombs including one addressed to French President Sarkozy. Video courtesy of Reuters. .German authorities say...