

Maria Moran and her daughter Abigail look at digital photos during a first-day-of-school breakfast for kindergarten students and their parents at Raguet Elementary School in Nacogdoches, Texas. An estimated 5 million public school students returned to Texas classrooms to start the 2012-13 school year. Andrew D. Brosig/The Daily Sentinel/AP
John Hassell walks his dog by Tampa Bay at Ballast Park in Tampa, Fla. The Republican National Convention has delayed it's start because of approaching tropical storm Isaac which is churning it's way across the Gulf of Mexico. Dave Martin/AP
Performers shelter from the rain at the start of the Notting Hill Carnival in west London. Olivia Harris/Reuters
A group of men watch as black smokes continues to billow from the Amuay refinery near Punto Fijo, Venezuela. A huge explosion rocked Venezuela's biggest oil refinery early Saturday killing at least 41 people and injuring more than 80 in Venezuela's deadliest refinery blast ever. Ariana Cubillos/AP
Residents stand in line to receive aid from the International Organization for Migration in a camp for displaced people in Port-Au-Prince, Haiti. Tropical storm Isaac dumped torrential rains on Haiti, where thousands of people remain homeless more than two years after a devastating earthquake. Logan Abassi/UN/MINUSTAH//Reuters
Ricardo Dos Santos of Brazil competes during the third round of the Billabong Pro surfing event Sunday in Teahupoo, Tahiti. Steve Robertson/Association of Surfing Professionals/AP
Tracie Bradford consoles her daughter Leah, a student at Perry Hall High School, who says she was in the school's cafeteria when a student was shot there and critically wounded on the first day of classes in Perry Hall, Md. A suspect was taken into custody shortly after the shooting. No one else was reported injured. Steve Ruark/AP
Republican vice presidential candidate Rep. Paul Ryan, R-Wis., and his family arrive at a campaign event at Joseph A. Craig High School in Janesville, Wis. Mary Altaffer/AP
An Indian vegetable vendor stands by his fully-loaded stall on a flooded street in Mumbai, India. Heavy rains caused flooding in several parts of the city. Rafiq Maqbool/AP
A woman sits in her wheelchair near her damaged house near Homs, Syria, Sunday after an air raid by the Syrian army forces. Yazan Homsy/Reuters
Israeli Prime Minister Benjamin Netanyahu speaks to sixth graders on their first day of school in Jerusalem. Gali Tibbon/Reuters
South Africa's Dean Elgar catches a ball during a training session before an international cricket match against England at the Ageas Bowl in Southampton, England. Philip Brown/Reuters
Torchbearer Simon Richardson lights the Paralympics Cauldron outside City Hall in Cardiff, Wales. The 2012 Summer Paralympic Games will be the fourteenth Paralympics and will take place between Aug. 29 to Sept. 9. Tim Ireland/PA Wire/AP
A woman wears a tee-shirt depicting late Ethiopian Prime Minister Meles Zenawi as she waits in line in the rain to pay her respects at the national palace where Zenawi's body is lying in state in Addis Ababa, Ethiopia. Zenawi is scheduled to be buried Sept. 2. Rebecca Blackwell/AP
Indian boys catch a ride on the back of a man's wheelchair during a sudden monsoon rain shower in New Delhi. The showers, which normally run from June to September, are crucial in a country where 60 percent of the population works in agriculture and less than half the farmland is irrigated. Kevin Frayer/AP
Covered gas pumps are seen as residents head to the pumps in preparation for tropical storm Issac in Metairie, La. On its current track, Isaac was due to slam into the Gulf Coast anywhere between Florida and Louisiana by Tuesday night or early Wednesday, the seventh anniversary of Katrina hitting New Orleans, the US National Hurricane Center said. Sean Gardner/Reuters
Real Madrid's Luka Modric of Croatia plays with his son Ivano during his presentation after signing with the team, at the Santiago Bernabeu stadium in Madrid. Juan Medina/Reuters
Pakistani Christians pray in the clearing of an urban forest in Islamabad, Pakistan. A group of Christians has cut down trees to clear the land and has begun to build a church out of branches after leaving their neighborhood in fear when one of their own was accused of violating Pakistan's strict blasphemy laws. B.K. Bangash/AP
Women pray in support of arrested mine workers outside the Ga-Rankuwa Magistrate Court in Pretoria, South Africa. The workers appeared on charges ranging from murder to public violence. The group was part of 260 rock drillers who were arrested following violence that saw police opening fire and killing 34 people and wounding 78 in a crowd of striking workers at a platinum mine a week ago. AP
Activists march through downtown as they take part in the 'Coalition to March on the RNC' before the start of the Republican National Convention in Tampa, Fla. Steve Nesius/Reuters
Marion Bartoli of France serves to Jamie Hampton of the US during their women's singles match at the US Open tennis tournament in New York. Jessica Rinaldi/Reuters
President of the Wide Convergence for Angola's Salvation-Electoral Coalition Abel Chivukuvuku (l.), greets supporters during his election campaign in Viana, Angola. Siphiwe Sibeko/Reuters
A dealer monitors price movements on an electronic board at the investors gallery in the Amman Stock Exchange in Jordan. Ali Jarekji/Reuters
Yure Dolenec of Qatar's El Jaish tries to score against Julen Auinaglade (13) of Spain's Atletico Madrid during the Super Globe 2012 handball tournament in Doha, Qatar. Fadi Al-Assaad/Reuters
Children look at the marine life at Sumida Aquarium in Tokyo. Koji Sasahara/AP
Bahraini anti-government protesters in Sitra, Bahrain, march in support of women prisoners. They carry a banner reading 'steadfast' in Arabic with images of prominent human rights activists jailed in connection with opposition protests. Their march was quickly dispersed by riot police firing tear gas. Hasan Jamali/AP
Brad McCally from San Antonio, Texas, sits in a chair on the floor of the Republican National Convention in Tampa, Fla. Jae C. Hong/AP