The US imposed new sanctions on Iran, aimed mainly at preventing Iran from getting around existing ones and halting the provision of weapons and personnel to Syria. The Homeland Security Department is considering the imposition of additional measures to stop jihadists from returning from conflict zones such as Syria and Iraq to the US. A Texas law enforcement bulletin warned that social media statements by Islamic State sympathizers have expressed interest in attacks by terrorists entering via the Mexican border. Ailina Tsarnaeva, a sister of Boston Marathon bombing suspects Tamerlan and Dzokhar Tsarnaev, has been arrested and charged for threatening to bomb a New York City woman. The Pentagon said operations in Iraq are costing about $7.5 million per day, and that the total since mid-June is around $560 million.
