Silvia Izquierdo, Associated Press
Brazil dinosaur: A model of the head of Uberabatitan Ribeiroi, a Late Cretaceous period dinosaur, is seen Wednesday at the Federal University in Rio de Janeiro, Brazil. The dinosaur, which lived in what is currently Brazil some 65 million years ago, had a length of more than 65 feet and weighed some 16 tons.

Cuba: Prosecutor quits

GUANTANAMO BAY NAVAL BASE — A U.S. military prosecutor at Guantanamo Bay has quit because his office suppressed evidence that could clear a young Afghan detainee of war crimes charges, defense lawyers said Wednesday.

The prosecutor, Army Lt. Col. Darrel Vandeveld, is now supporting a defense bid to dismiss the charges against Mohammed Jawad, according to Michael Berrigan, the deputy chief defense counsel for the Guantanamo tribunals.

The chief prosecutor, Army Col. Lawrence Morris, denied that his office withheld evidence and said Vandeveld told him he was leaving his post for "personal reasons."

Japan: U.S. carrier arrives

YOKOSUKA —The nuclear-powered U.S. aircraft carrier USS George Washington arrived Thursday at its new home port just south of Tokyo, welcomed by a mix of cheering crowds and protesters.

The giant warship, which will replace the USS Kitty Hawk, docked at its new base in Yokosuka to shouting supporters and a brass band.

But protesters on shore and in a small flotilla of boats in the harbor demonstrated against the deployment, which some say poses a nuclear risk to Japan's capital.

The George Washington, which can carry a crew of up to 5,600 and 70 aircraft, will become the U.S. Navy's only carrier with a home port outside of the United States.

Mexico: Radio host slain

VILLAHERMOSA — A Mexican radio host has been gunned down while hanging banners to protest a wave of kidnappings across the country.

Co-worker Angel Morales says he was helping EXA radio host Alejandro Fonseca put up the signs in the southeastern city of Villahermosa on Tuesday night when unknown assailants demanded they stop. Morales says they shot Fonseca and fled after he refused.

Fonseca died Wednesday morning.

He had announced plans to put up banners reading "no to kidnapping" and "kidnapping thrives as long as citizens let it."

Russia: Chechen assassinated

MOSCOW — A former Russian parliament member and one-time Chechen rebel fighter whose brother had been involved in a long-running feud with the Kremlin-backed Chechen president was shot to death in Moscow late Wednesday by an unknown assailant, the Interior Ministry said.

The victim, Ruslan B. Yamadayev, was killed as he sat in a car close to the Russian White House, an Interior Ministry spokesman said. Another man in the car was wounded in the attack and was identified by investigators as a former military superintendent in Chechnya, the Interfax news agency reported.

Venezuela: 2 arrested in plot

CARACAS — Venezuelan authorities have arrested two people suspected of plotting to kill Hugo Chavez by blowing up the president's plane with heavy artillery, the country's top security official said Wednesday.

Justice Minister Tarek El Aissami said the suspects were apprehended Tuesday during a raid on a house in western Zulia state, where authorities found a cannon and four grenades. He said the names of the suspects would not be revealed for "strategic reasons."