Israel has issued a highly unusual public warning to Syrian president Bashar al-Assad. The warning, couched in no uncertain terms, consists of two parts: First, if Syria and Iran again try to ship game-changing weapon system to Hezbollah, Israel will destroy these shipments, as it has already done three times, on 30 January, 3 May, and 5 May. Second, if Syria retaliated against Israel in the wake of such attacks, Israel would inflict crippling blows on the Assad regime and force Assad from power.

DHS has rejected repeated FOIA requests for the federal immigration records of the Boston Marathon bombing suspects, as well as Immigration and Customs Enforcement’s records on Tamerlan Tsarnaev, saying they are still conducting an investigation. 

Administration critics on the Hill now focus more of their attention on the changing explanations administration officials have offered in public as to the nature of the attack and the identity of the perpetrators. Yesterday, President Obama said the he used the term “terrorism” early on, and that he dispatched a senior official to brief lawmakers in the issue. He is right – up to a point: On 12 September Obama did describe the attack as an “act of terror,” and on 19 September counterterrorism director Matt Olsen used the term in response to a senator’s question, but otherwise, until 20 September, all high-level administration officials, including Obama, declined to attribute the attack to terrorists.

A Turkish group affiliated with a Syrian Alawite militia and operating on orders of Syrian intelligence, carried out a suicide attack Saturday in the Turkish city of Reyhanli, killing forty-six people. More than fifty people are still being treated in local hospitals. Reyhanli is an entry point for refugees fleeing violence in Syria. The attack will increase pressure on Turkey to become more involved in the Syrian conflict.

With the anti-regime uprising in Syria evolving into a full-fledged ethnic conflict between the Alawite minority and the Sunni majority, the Assad regime relies more and more on Shi’a allies – Iran, Hezbollah, and the al-Maliki government in Iraq — to stay in power. Over the last three months, Hezbollah has been playing a growing, and more open, role in shoring up the regime.

The United States sharply challenged claims by a UN official – who is not a member of the UN investigative commission looking into to the possible use of chemical weapons in Syria – that the rebels, rather than the Assad regime, used sarin nerve gas near the city of Aleppo on 19 March. The UN investigative commission looking into the incident distanced itself from the official’s comments.

Last Friday a federal judge reversed the ruling of  another judge and ordered that a Chicago-area teen  accused of attempting to join al Qaeda-linked militants in Syria be kept in jail until his trail rather than be released to his family.

Representative Michael McCaul (R-Texas) said theHouse Homeland Security Committee will meet next week to hear testimony from Boston Police Commissioner Ed Davis and discuss the Boston Marathon bombing response methods and its implications for homeland security. “This will be the first in a series of hearings, as part of a broader investigation into the Boston Marathon bombings,” McCaul told reporters.

Three college students have been arrested on suspicion that they helped Dzhokhar Tsarnaev destroy evidence which would have provided details about his and his brother’s preparations for the marathon bombing. One of the three then lied to police when asked about their actions. The three are likely to face charges of conspiracy to obstruct justice. One of three will also be charged with lying to federal investigators.