Washington, Apr 17 (EFE).- Four Republicans and four Democrats on Wednesday formally presented in the U.S. Senate their immigration reform bill, which is supported by President Barack Obama. "Our immigration system is broken and it is time for a national conversation about how to fix it. We believe common-sense immigration reform is vital in order to secure America's borders, advance our economic growth, and provide fuller access to the American dream," said the so-called Gang of Eight, including Florida Republican Marco Rubio, in a statement.

Defense Secretary Chuck Hagel on Monday cancelled a new combat medal for US troops who launch drone strikes or cyber attacks after a torrent of criticism from veterans and lawmakers. Hagel opted to scrap the new "Distinguished Warfare Medal" for a pin or device that could be added to existing medals to recognize service members operating unmanned aircraft or cyber weapons, Hagel said in a statement.

Defense Secretary Chuck Hagel on Monday said US commanders should be barred from overturning criminal convictions, in the wake of anger over a quashed guilty verdict in a sexual assault case. Under Hagel's proposal, which would have to be approved by lawmakers, commanders would still have the power to alter sentences handed down in court martial cases, defense officials said. "These changes, if enacted by Congress, would help ensure that our military justice system works fairly, ensures due process, and is accountable," Hagel said in a statement.

Defense Secretary Chuck Hagel is calling North Korea's development of nuclear weapons a "growing threat" to the U.S. and its allies. In a telephone call Tuesday evening to Chinese Defense Minister Chang Wanquan, Hagel cited North Korea's pursuit of nuclear weapons and ballistic missiles and said Washington and Beijing should continue to cooperate on those problems. A Pentagon statement describing the phone call also disclosed that Gen. Martin Dempsey, chairman of the Joint Chiefs of Staff, will visit China later this month.