The Assad regime says the attack underscores the need for unity. The opposition has contrasted the regime's lack of response with its relentless attacks on its own people.
Confidence appears to be growing that the Bulgaria bus bombing was part of an Iranian and Hezbollah campaign against Israeli interests abroad.
Be forewarned, Israel and the US. We are entering a dangerous stage in which Iran feels it must respond in kind to attacks against it. When two nations engage in patterns of attacks and counterattacks, it's much easier for a mistake or misjudgment to lead to disaster.
Journalist Nicholas Blanford's comprehensive account of the conflict between Hezbollah and Israel is well-paced and gripping.
The highly anticipated indictments could help bring accountability for former prime minister Rafik Hariri's 2005 assassination. But they could also stir sectarian tensions.