explosive detection sweeps and random bag inspections. you will see amtrak canine explosive detention teams as well. there will be several days a year that rail travelers will be able to notice more controls will be subjected to some level of psa inspections. security measures are being imaged with the recent attempted train terror attack in france. johnson is praising the americans for foiling the plot. a an attack should be detected much earlier on. when you have a situation where you have heros among billions, that is homeland security of the last resort.