. ♪ over the rainbow way up high and the dream that you dream of once in a lullaby ♪ , powders may take for gentle overnight relief, try dulcolax laxative tablets. ducolax provides gentle overnight relief, unlike miralax that can take up to 3 days. dulcolax, for relief you can count on. . >>> it is 59 minutes after the hour. before you leave the house, here is what's happening today. chilling threat from al qaeda hints at a looming attack right here in america. this as u.s. officials confirm a significant increase in jihadi chatter before the september 11th anniversary. >>> from clashes on the streets to clashes in the courtroom. protesters filing a $200 million lawsuit against the city of ferguson, missouri. >>> a third day, a huge 30 foot wave and dangerous currents off the california coast. that's thanks to a far off storm. officials warning people to stay out of the water. it is time to take a look at the good, the bad, and the ugly. the american city nashville, tennessee. the website used demographics to come up rankings. next cincinnati. next, the bad, rainbows don't always bring

. >> jessica, i don't want some kind of bizarre, you know, childhood lullaby from the president of thestates only to wake up and the monster is at the food food -- foot of my bed. >> the white house knows they need to be if not more forceful on this to appear as though they are sort of formulating something. i think that this rollout they they had yesterday was a wakeup call. we will see the president making more statements and laying more action. is he heading to europe for the nato meeting we will see what prime minister david cammeron comes up with. he is supposed to go to parliament monday. i think this is where these british passportsy used. raise the terror level to block those from becoming even more increasing tone. but i think once the president heads to the nato summit and then more importantly once congress comes back the week after next, like they said the question is how much support will he have have within congress for this? he is the commander and chief. is he learn i well within his powers to be able to being a, to make some decisions, to be decisive. i don't get why i

. >> woodruff: on the newshour online right now, lullabies are meant to comfort and hush a child intossful sleep. so why do so many of them have such melancholy lyrics? and does it really matter? we look into the science of soothing, and why babies respond to a mother's song, on our home page. all that and more is on our web site, newshour.pbs.org. >> ifill: and that's the newshour for tonight on thursday, we examine an engineering and economic marvel as the panama canal turns 100. i'm gwen ifill. >> woodruff: and i'm judy woodruff. we'll see you on-line, and again here tomorrow evening. for all of us here at the pbs newshour, thank you and good night. >> major funding for the pbs newshour has been provided by: >> and by the alfred p. sloan foundation. supporting science, technology, and improved economic performance and financial literacy in the 21st century. >> and with the ongoing support of these institutions and... >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. captioning spo