NEW : President Obama to talk Syria on Capitol Hill on Tuesday . Qatar says it is examining options on how to deal with Syria . Comment: Britain 's Parliament has ruled out getting militarily involved in Syria , but Prime Minister David Cameron has pledged to continue to push for a tough response against the al-Assad regime . Syria crossed 'international , global red line , ' he says .
NEW : President Obama to talk Syria on Capitol Hill on Tuesday . Qatar says it is examining options on how to deal with Syria . Comment: Syria crossed 'international , global red line , ' he says .