roxana saberi, cbs news, london. >> diaz: against huge odds.on the "cbs weekend news," chicago goes green with a splash for st. patrick's day. >> diaz: today in chicago, it's that time of year again. to celebrate st. patrick's day's day crews died the chicago river green. the electrician started when plumbers were detecting leaks with dye that turned water bright green. now a city electrician, the plumbers union dyes the river every year for st. patrick's day. they say the dye is environmentally safe but its ingredients are a closely guarded secret. when we return, the musicians who strike up the madness in march. >> diaz: finally tonight, march madness is back, complete with pomp and pep bands. here's cbs' nancy chen. ♪ ♪ ♪ >> reporter: it's a game-day staple: and as soon as the pep band starts playing, villanova university pride isn't just heard... ♪ ♪ ♪ ...it's felt with about 100 members, the band is tasked with hyping up big crowds through big moments. >> and one, two... >> reporter: led by director beth sokolowski. >> can you imagine marc

norah. >> o'donnell: roxana saberi in london. well, there are worries about the war in ukraine that sent stocks on a tailspin today despite a blockbuster jobs report. all three of the major indexes, the dow, nasdaq, and s&p, all closed down, and gas prices are taking a bigger bite out of our wallets rising at a rate not seen since hurricane tatrina in 2005. here is carter evans. >> reporter: americans are heading back to work. the economy added 678,000 jobs in february, much more than expected, taking the unemployment representative down to 3.8%, a pandemic low. >> we've seen this uptick in higher, with the expectation that the economy is really going to be booming as we get out of this omicron wave, as we get into springtime. >> reporter: the job market is so hot right now, there are nearly two opening for every applicant, and that demand drove wages up. average earnings in the u.s. are now more than $31 an hour, but the raises leveled off last month. what does that mean when it comes to demand for workers? >> more people are co

she was named after the queen and born shortly after the death of prince philip. >> roxana saberi inrself under the mighty hand of god, in due time he will exalt you. hi, i'm joel osteen. i'm excited about being with you every week. i hope you'll tune in. you'll be inspired, you'll be encouraged. i'm looking forward to seeing you right here. you are fully loaded and completely equipped for the race that's been designed for you. >>> retired school teacher shirley woodson spent her life supporting artists of color. now at the age of 85 it's finally time for her to step into the spotlight. michael george has her story. >> there is nothing without art. that's my feeling. >> reporter: shirley woodson's paintings are full of life. vibrant colors evoking images of water and strength. >> it's the shield of the nile. >> reporter: at 85 years old her work is front and center in a solo exhibition called "shield of the nile reflections" at the detroit institute of art. >> i want my art to inspire and cause people to think. >> reporter: woodson taught high school and college for 26 years, and she