. >> let's go live to washington, d.c., and kim berly hall cut who is there for us.will this mean in practice? >> reporter: we also here from secretary of state john kerry who said that what this means is we're going to see a u.s. secretary of state in havana raising a u.s. flag with the opening of the embassy. in that underscores how dramatic the change is that is taking place. in terms of practical reality, we're going to see a higher level of diplomatic relations, while there are still sharp differences, there will be some key areas where the two nations can partner on the issue of law enforcement, transportation emergency response. the two countries are separated by about 120 kill only -- kill only tiers. >> presumably there are some people who don't like the idea. >> reporter: there are definitely people that don't like the idea. we have seen a lot of excitement around the cuba intersection here, this is what served as the de facto embassy for decades now. this is where the flag will be raised, the cuban flag for the first time in more than half a century, so th