An update from London on some of the international stories we expect to develop on Tuesday:

Parliament scuffle – Lawmakers in Ukraine scuffled with each other, throwing punches and eggs, as parliament met Tuesday to ratify a treaty with Russia that extends the latter's military presence in the former Soviet Republic.  Someone set off a smoke bomb inside the building, while Speaker Volodymyr Lytvyn sought refuge behind an umbrella as he was pelted with eggs.

Noriega extradition - Former Panamanian dictator Manuel Noriega arrived Tuesday morning in France, where he was extradited to stand trial on charges that he laundered drug money.

Israel probe - An Israeli military probe concluded that the deaths of four Palestinians in recent clashes could have been avoided. Several officers involved were disciplined.

Goldman Sachs -  Top representatives from Wall Street's most powerful firm will appear on Capitol Hill on Tuesday, where they are expected to endure a harsh line of questioning from lawmakers about their role in helping bring about the financial crisis. 

Election candidates - An Iraqi electoral appeals panel on Monday announced the disqualification of 52 candidates in last month's elections, throwing another stumbling block into the country's effort to form a government.