It's my understanding that the 405 is closed because they are tearing down the Mullholland bridge to eventually widen the freeway. The reports today have everything quite quiet with no major "freakouts".
Take a look at this clip from a BBC broadcast. It's short, it's self-explanatory and it's hilarious. What an embarrassment for the reporter.
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK
