Israel is straining to arrest a slide toward regional conflict after staging an airstrike on a military facility outside Damascus, reportedly to stop a transfer of weapons to Hezbollah.
The bar is set high, but the US could begin providing body armor, night-vision goggles, rifles, and other basic arms to Syria's rebels.
Homs lies along a key highway that connects Damascus with the coastal city of Latakia, a regime stronghold.
The Syrian prime minister escaped the bombing unharmed, but the attack – in one of Damascus's wealthiest neighborhoods – shows the safe zone for regime members is shrinking.
Last month President Obama called chemical weapons use by Syria a 'game changer,' but why do US interests change if chemical weapons are used?
The churches of two prominent Syrian Orthodox bishops reportedly kidnapped in northern Syria were unable to verify a claim that the pair had been released by their armed rebel captors.
The Israeli military says its evidence shows that the Syrian regime used sarin gas during a March clash with rebels, reversing earlier reports that no such weapons had been used.
Russia has been unmoving in its opposition to stronger action against the Assad regime, putting it at odds with the rest of the G8, meeting today in London, on how to resolve the Syrian conflict.
However, the ongoing Syrian conflict has caused divisions within Arab nations, and within the rebels themselves.
The rebel Free Syrian Army's Col. Riad al-Asaad was reportedly injured in a blast, while the Free Syrian Army rejected the political council's appointment of Ghassan Hitto as provisional prime minister.
A bombing targeting a Damascus mosque killed Sheikh Mohammad Said Ramadan al-Buti, a critical source of Sunni support for the Assad regime amid the Sunni-led uprising.
US Ambassador to Syria Robert Ford laid out to Congress the Obama administration's efforts to help some Syrian rebels, and undermine jihadi rebels like Jahbat al-Nusra.