Authorities are also investigating what Malik was up to in Pakistan and in Saudi Arabia, and whether she radicalized her husband.
The president has failed to pass meaningful gun control legislation, but could fight the Islamic State in other ways.
The hashtag was inspired from a bystander at the scene of Saturday's stabbings.
"He will reiterate his firm conviction that ISIL will be destroyed and that the United States must draw upon our values," said the White House in a statement Saturday.
Three professors at Malik's university said they had been advised not to talk to the media while men claiming to be from Pakistan's security agencies told reporters to drop their investigations.
Family members have said the former U.S. president has maintained a busy schedule since doctors found melanoma spots during the summer.
The victim suffered “serious” knife wounds but is expected to survive, police said.
Republican presidential front-runner Donald Trump said people are dead because Americans are politically correct and called for racial profiling to fight terror.
Saudi Arabia follows an ultra-conservative form of Islam and is seen by some outsiders as a cause of the international jihadi threat.
Forty additional Islamic State group militants were injured during the strikes, which were carried out in the ISIS stronghold of Raqqa.
Vendors in the border town of Ciudad del Este, Paraguay, said sales are dropping as Brazilian shoppers disappear from the city's sprawling markets.
The Dec. 8-10 meeting will consider a resolution to hold an annual meeting of states that have ratified the Geneva Conventions.
Many of Azerbaijan's oil platforms were build in the Soviet era.
British lawmakers voted Wednesday to join the U.S.-led aerial campaign against the ISIS and other militant groups in Syria.
The Belgian capital was home to some of the Paris attackers and a logistical planning base for the operation.
Days of incessant rains in the southern Indian city have claimed over 280 lives and rendered thousands homeless.
Beijing issued its second smog warning in less than a week as city dwellers expressed frustration over government inaction.
The attack, claimed by ISIS, comes a day after a UN envoy met with the country's president to plan an end to the months-long civil war.
Officials suspect that Enrique Marquez, Syed Farook's childhood friend, bought the assault rifles used by the San Bernardino shooting suspects.
The Turkish president vowed not to be affected by pressure from Russian sanctions after Turkey shot down a Russian fighter jet in November.
Assad's fate is a sticking point in talks between world powers aimed at finding a political solution to the crisis in Syria.
The National Front (FN) may lead in as many as six out of 13 regions after the first round Sunday.
Five conservative Republican candidates discussed terrorism and guns at a forum in Cedar Rapids, Iowa, hosted by the FreedomWorks group.
A specialist hired by the family of the 12-year-old boy determined that he had his hands in his pockets when he was fatally shot by a white police officer last year.
The president will deliver a speech on terrorism Sunday in response to the shootings that left 14 victims dead in San Bernardino, California.
The retailer's Puerto Rico unit filed a lawsuit against the commonwealth over a new tax it claimed would lift its tax burden above 90 percent of operating income.
As year-end deadlines loom, legislators are still tangling over a range of tax break extensions for industries like renewable energy and healthcare.
A man with a knife injured three riders in the London Underground in an incident that police are examining as an act of terrorism.
The president of Liberty University said Friday that more people should carry concealed firearms as a way to combat terrorism.
U.S. Secretary of State John Kerry called for urgent action from both Palestine and Israel.