By NICK WADHAMS, Associated Press Writer UNITED NATIONS – A U.N. report into the assassination of former Lebanese Prime Minister Rafik Hariri concluded that Lebanon’s probe of the killing was riddled with flaws and an international investigation is needed. The report, released Thursday, does not directly assign blame, saying the causes could not be determined. But it says Syrian military intelligence shares responsibility to the extent that it and Lebanese security services failed to provide “security, protection, law and order” in Lebanon. The report says there was a “distinct lack of commitment” by Lebanese authorities to investigate the crime, and the probe was not carried out “in accordance with acceptable international standards.”