williams joins us. >> reporter: the details about what countries are involved here. five of the six original countries are part of this extended ban. this is an indefinite ban. kpeeps restrictions on iran, libya, somalia, syria and yemen. it lift restrictions on visitors from sudan. it adds new restrictions on visitors and immigrants from chad, north korea and venezuela. remember that the original travel ban the one that went into effect in march had a 90-day restriction on visas. that expired yesterday. so for those original countries that were on that list the five of the six carries on as of yesterday, and then the restrictions on the new countries will kick in about three weeks. but here's the one big difference between the original executive order and this one. the original executive order lasted for only 90 days. this is indefinite unless those countries can improve three critical things. the way they identify people