Ari Redbord is Head of Legal & Government Affairs at TRM Labs & Former Senior Advisor for Terrorism & Financial Intelligence at the U.S. Treasury *Follow him on Twitter: @ARedbord. The idea of sanctioning a government, how it works, how these sanctions are being put into effect and whether they really have their intended effect.

Marc Caputo, formerly of the Herald and Politico is now a National Political Reporter for NBC News *Follow him on Twitter: @MarcACaputo

CBS News & 610 WIOD Travel Editor, Peter Greenberg *Follow him on Twitter: @PeterSGreenberg and sign up for his weekly newsletter on his website: PeterGreenberg.Com

WIOD Senior National Correspondent, Michael Bower *Follow him on Twitter: @TheBowerShow. A universal internet, where everyone can access the same messages and services, is slipping out of reach as democracies falter and governments limit usage.

WIOD National Correspondent Rory O'Neill *Follow him on Twitter: @RadioRory. The very latest on how Ukraine is working to hold off the Russian invasion.

ABC News Correspondent Ike Ejiochi (“EH-JAW-chee “), in for Karen Travers *Follow him on Twitter @IkeEjiochi

Broward County Sheriff Gregory Tony *Follow him on Twitter: @bsosherifftony

Phil Flynn is one of the world's leading energy experts, a Senior Analyst at the Price Futures Group and writer of “The Energy Report” *Follow him on Twitter: @EnergyPhilFlynn How Ukraine is affecting oil prices, whether it makes sense to suspend gas taxes, etc.

John Zogby is a famed pollster and political analyst. Check out his weekly podcast -- The Zogby Report: Real and Unscripted, on his website: JohnZogbyStrategies.com

WIOD Senior National Correspondent, Michael Bower *Follow him on Twitter: @TheBowerShow. The latest on the situation in Ukraine.