Ben Smith points out that Hillary has "misspoken" about foreign leaders on quite a few occasions now:
"Along with the New Zealand flap, she's twice created real tension with key heads of state: Putin, who took it badly when she said he "doesn't have a soul"; and Musharraf, whose government reacted furiously when she suggested he might have had Benazir Bhutto killed... These stories haven't really been told as a narrative, because they don't fit the existing narrative. But they are, together, a fairly striking batch."
UPDATE: Also worth reading is this LA Times piece on the international reaction to Clinton's claim that she would "obliterate" Iran if it attacked Israel. She gets politely rapped on the knuckles by British diplomat extraodinaire Mark Malloch Brown:
"While it is reasonable to warn Iran of the consequence of it continuing to develop nuclear weapons and what those real consequences bring to its security, it is not probably prudent... in today's world to threaten to obliterate any other country and in many cases civilians resident in such a country."