US lifts HIV/Aids immigration ban

he US has lifted a 22-year immigration ban which has stopped anyone with HIV/Aids from entering the country.

President Obama said the ban was not compatible with US plans to be a leader in the fight against the disease.

The new rules come into force on Monday and the US plans to host a bi-annual global HIV/Aids summit for the first time in 2012.

The ban was imposed at the height of a global panic about the disease at the end of the 1980s.

It put the US in a group of just 12 countries, also including Libya and Saudi Arabia, that excluded anyone suffering from HIV/Aids.

The BBC's Charles Scanlon, in Miami, says that improving treatments and evolving public perceptions have helped to bring about the change.

Rachel Tiven, head of the campaign group Immigration Equality, told the BBC that the step was long overdue.

"The 2012 World Aids Conference, due to be held in the United States, was in jeopardy as a result of the restrictions. It's now likely to go ahead as planned," she said.

In October, President Obama said the entry ban had been "rooted in fear rather than fact".

He said: "We lead the world when it comes to helping stem the Aids pandemic - yet we are one of only a dozen countries that still bar people with HIV from entering our own country."

Nigeria rebels attack oil pipeline

Armed men in the Niger delta of Nigeria say they have attacked an oil pipeline overnight, putting a two-month truce with the government in doubt.

A faction of the Movement for the Emancipation of the Niger Delta said it attacked the pipeline.

A spokesman said it was because the government was delaying peace talks due to the absence of ill President Umaru Yar'Adua, who is in Saudi Arabia.

Attacks have cost Nigeria millions in lost revenue over the years.

The faction said, in an e-mailed statement, that the "warning strike" was carried out by 35 men on five boats with assault rifles, rocket launchers and heavy-calibre machine guns.

It said the pipeline was in Abonemma, about 50km (30 miles) west of Port Harcourt.

Nigeria's military has not commented on the attack.

Peace talks were suspended when President Yar'Adua was hospitalised in late November in Saudi Arabia.

Mend said it would review the ceasefire within 30 days.

"While the Nigerian government has conveniently tied the advancement of talks on the demands of this group to a sick president, it has not tied the repair of pipelines, exploitation of oil and gas as well as the deployment and re-tooling of troops in the region to the president's ill health," it said.