Previous laws have been rejected in 23 states since 2007, but gun-control activists say it will be difficult to stop the Texas bill passing this year.

自2007年起，允许带枪的相关法案已经在23个州被否决，但是枪控激进分子认为，今年很难阻止德克萨斯州通过这一议案。

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Ward was already on parole for a previous gun violation -- unlawful use of a firearm -- when he shot Pendleton, McCarthy said.

CNN: STORY HIGHLIGHTS

Previous attempts to pass a gun-control law have failed, so the government has put a clause in its bill promising that the restrictions on gun sales would only come into effect if approved by a national referendum.

ECONOMIST: One victim every minute | The

However, Mr Buffett said he had reloaded his "elephant gun", a reference to a previous comment in 2011 that he was using such a weapon to look for acquisitions.

BBC: Warren Buffett