Among the events that happened on this day in history, including the Federal Reserve discontinuing publishing M3 money supply in 2006.
A Belgian newspaper is reporting one of the three men suspected in the Brussels terror attack has been apprehended. CNBC's Eamon Javers looks at the brothers involved in the attack.
Oil's rally giving boost to stocks.
In the aftermath of the Brussels attacks, Belgium has reintroduced border checks, drawing attention to Europe's open borders.
Trump says authorities interrogating Paris terror suspect Salah Abdeslam should "do whatever they have to do."
Discussing fears about more attacks globally, and what happens at Homeland Security when this kind of attack occurs, with Michael Chertoff, Chertoff Group Executive Chairman and former Homeland Security Secretary.
Insight into the UK economy, European politics and the impact of a Brexit, after the terrorist attacks in Brussels Tuesday, with Boris Schlossberg, BK Asset Management. He says the infrastructure of Europe is falling apart.
Former Assistant Homeland Security Secretary Robert Liscouski provides perspective on protecting soft targets.
NBC News analyst and retired ATF special agent Jim Cavanaugh provides perspective on the deadly Brussels attacks Tuesday, days after authorities caught Paris suspect Salah Abdeslam, saying the terrorists could have had this attack planned, but just accelerated it.
President Obama will speak to the Cuban people Tuesday after the Brussels attacks, reports CNBC's Michelle Caruso-Cabrera.
Michael O'Hanlon, Brookings Institution, discusses global efforts to counter terrorism.
Discussing the security in Europe, and preventing another attack, with Frances Townsend, MacAndrews & Forbes executive VP and former Homeland Security advisor.
Discussing the potential impact on the European economy from terrorism fears, with Ian Bremmer, Eurasia Group President.
Former Director of the CIA R. James Woolsey, reacts to the deadly Brussels explosions.
CNBC's Eamon Javers reports on tweets by presidential candidates Tuesday after the attacks in Belgium, and the heightened security in Washington D.C.
CNBC’s Wilfred Frost reports on French President Hollande’s remarks after the deadly terrorist attack in Belgium.
The New York Times foreign affairs columnist Thomas L. Friedman, says terrorists would love Donald Trump to be president of the U.S.
France’s Interior Minister Bernard Cazeneuve and President Hollande are commenting on the Brussels attacks, reports CNBC’s Steve Sedgwick.
Discussing the three reported explosions in Belgium, and the economic impact, with Jason Trennert, Strategas Research Partners.
The New York Times foreign affairs columnist Thomas L. Friedman, thinks the U.S. should be "very humble" about the capabilities of ISIS fighters.
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Joe Kernen is co-anchor of "Squawk Box," CNBC's signature morning program.
Becky Quick is co-anchor of "Squawk Box" and also anchor of the nationally syndicated "On the Money."
Andrew Ross Sorkin is a co-anchor of "Squawk Box," a financial columnist for "The New York Times" and the editor-at-large of NYT's DealBook.