so -- but these are all ideas, we will get a lot of this discussion going on and ultimate, i believe, david that we are going to end up with a bill on the president's desk somewhere around thanksgiving. >> senator bill nelson, democrat from florida. senator, great to have you on as always. thanks for coming on today. >> thank you. well there are new concerns about security here in the united states eight years after 9/11. there is still no reliable system for knowing whether or not foreign visitors have actually left the country. these new concerns stem from a case in texas where a 19-year-old jordanian who overstayed his tourist visa was accused of plotting to blow up a dallas skyscraper. immigration officials believe that in the past year alone, 2.9 million foreign travelers entered the country on temporary visas but never officially checked out. nbc's justice correspondent, pete williams, joins us with more. so, pete, lawmakers are now calling for a universal electronic exit monitoring system? what is being done to put that