Elizabeth Warren talks about the need for financial reform; President Obama visits the University of Michigan; we follow up on the lawsuits filed againts Arizona's immigration law; and we follow the story of the catastrophic oil spill in the Gulf of Mexico. Also, Celeste is in Detroit, reporting from WDET.

Greece's economic woes worry global financial markets; Florida Governor Charlie Crist may run for Senate as an independent; technologies and techniques for containing the oil slick in the Gulf of Mexico; the ongoing fight against childhood obesity in America; author Jeffrey Eugenides on his hometown, Detroit.

The Supreme Court will hear a case considering people who signed a ballot petition but don't want their names released; Goldman Sachs CEOs before a Senate Committee; a surprising saving strategy for those with college-bound kids; an offshore wind farm in Nantucket gets closer to reality; Ukranian parliament resorts to smoke bombs and egg throwing; revisiting the humble peanut butter and jelly sandwich.

We get ready to report from Detroit and find lots of love for the Motor City. We follow the story in Washington as financial reform is stalled, and Goldman Sachs' executives prepare to testify in Senate. Arizona's tough new immigration law sends ripples through the activist and the lawmaking community. And we look at the complex history of the Lochness Monster.

Arizona Governor Jan Brewer and the nation's strictest immigration enforcement law; Sen. Chris Dodd's (D-Conn) financial reform bill tries for the Senate floor; the week's agenda; real-life version of "The Back-up Plan"; the future of the Tea Party. Lynn Sherr fills in for Celeste Headlee.

The president's address to Wall St; whether oversight changes how bankers manage money; a Times exclusive on the causes of the Massey Energy mine disaster in West Virginia; HIV+ women in Zimbabwe; the best (and worst) at the Tribeca Film Festival; cracking and keeping secret recipes. Lynn Sherr fills in for Celeste Headlee.

An Arizona tribe gets $700,000 in a court settlement involving misuse of their DNA; schools across the country face steep budget cuts; Google reveals more of its foreign policy; YouTube turns five; the Army treats soldiers with PTSD; 40 years of Earth Day

Witnesses to the Civil Rights movement and the Mariel Boatlift; investigating carbon offsets; FDA aims to reduce the nation's salt intake; Treasury Secretary Tim Geithner testifies on the collapse of Lehman Brothers; musician and rapper Guru dies; strawberry recipes; learning how to haggle

Imagining a world without planes; the killing of two top al-Qaida leaders in Iraq and Prime Minister Nouri al-Maliki's political woes; are unpaid internships illegal?; cursing in public; prevalence of rape in Haiti camps; high-speed rail projects scramble for funds; deliberately choosing our risks.

Civil suit brought against Goldman Sachs alleging knowing fraud during housing crisis; Eyjafjallajökull continues blanketing European airspace with ash; the week's Agenda; when adoptions don't work out; Supreme Court to hear case about exclusionary groups seeking official recognition and funding on a public university campus; human trafficking in Afghanistan.

Iceland's volcanic eruption keeps European airports closed; Colorado's child poverty rates rising the fastest in the nation; Arizona sees massive raids by ICE on human smuggling network; John Romita Jr. on "Kick Ass"; Russia halts all adoptions to U.S.; David Alan Grier on the 20th anniversary of 'In Living Color.'

States consider expanding authority of Nurse Practitioners; the Tea Party Express gets to Washington D.C.; artist James Sturm experiments with giving up the Internet; rescue and aid to earthquake victims in rural China; Twitter to be archived in the Library of Congress; the future of the space program; and, Does older always mean wiser?

The Nuclear Security Summit wraps up; lawmakers from Oklahoma on attitudes towards the federal government; in Mexico, artists can pay their taxes with artworks; Charlotte, N.C., sees an influx of northerners; anti-government "red shirt" protests in Thailand; tricking yourself to save; the boom in microfinance lending proves fertile ground for both genuine charity and opportunists; and Kim Severson previews her new book, 'Spoon Fed.'

Second day of the international nuclear security summit in Washington D.C.; history of America's attitudes towards taxes; states considering expanding their gambling programs to raise revenues; bullying in the workplace; medical uses for hallucinogens; Conan O'Brien takes the stage in Eugene, Oregon.

States turning to expanding gambling programs to bring in money; maneuvering over Justice Stevens' still-occupied Supreme Court seat; the coming week's agenda; suicidal depression among very young children; next steps for Poland as it moves to rebuild its government; Sudan's first multi-party election in 24 years; branding maven Graham Button on "the Obama brand."

Baltimore and Detroit as just two of many American cities trying to solve budget shortfalls; a history of Massey Energy Company's mining practices; China signals a small change to its currency policies; next steps in Haiti; actor Wendell Pierce on David Simon's new series, 'Treme'; weekend movies and 'The Girl With the Dragon Tattoo.' Todd Zwillich fills in for John Hockenberry.

The president signs a new nuclear treaty with Russian President Medvedev; small businesses help themselves by bartering during a rough economy; the Hubble Space Telescope turns 20 this month; the beginnings of the Financial Crisis Inquiry Commission's investigations; author Piper Kerman's new book about her time in prison, "Orange is the New Black."

We continue our reporting on the W. Va. mine explosion; check in with Colorado's attorney general, who joined the lawsuit over health care; analyze the recent blow to net neutrality; find out why we should be watching women's basketball; and hear what "Saturday Night Live's" Julia Sweeney has to say about playing Pat on the show.

Updates on the West Virginia mine disaster; DOT Secretary Ray LaHood fines Toyota $16.4M for failure to inform government about accelerator problems; progressives frustrated with President Obama's compromises on favorite issues; the rise of medical marijuana and the NIMBY attitudes towards its dispensaries; getting a job for which you're overqualified.

Concern over the security of our mass transit systems in wake of the Moscow subway bombings; what parents can do to stop their children from bullying; an update on Iranian influence in Iraq; a sex abuse scandal rocks the Boy Scouts of America; the history of the presidential first pitch at baseball games; a look at whether Tiger Woods can retain his unflappable demeanor when he returns to golf, and how it could affect other players. Todd Zwillich fills in for John Hockenberry.

Catholicism, the Vatican and past sex abuse stories; how education reforms play out in local districts; Tyler Perry's latest movie; the EPA and the DOT issue new emission standards on cars and light trucks; heroin trafficking from Afghanistan; a history of the belief in Heaven.

Judge says no to patenting human genes; President endorses some offshore drilling; Closing the racial achievement gap in schools; Early adopters and iPads; India's census gets underway; Memphis as "hunger capital" of the U.S.