Obama tries to stop execution in Texas of Mexican killer  US
president warns Texan authorities that execution would put
America in breach of international legal obligations COP15 U.S.
President Obama President Barack Obama has asked the Texan
authorities not to execute the convicted rapist and murderer
Humberto Leal Garcia. Photograph: Bob Strong/Reuters  President
Barack Obama is attempting to block the execution in Texas on
Thursday of a Mexican man because it would breach an
international convention and do "irreparable harm" to US
interests.  The White House has asked the US supreme court to
put the execution of Humberto Leal Garcia on hold while Congress
passes a law that would prevent the convicted rapist and
murderer from being put to death along with dozens of other
foreign nationals who were denied proper access to diplomatic
representation before trials for capital crimes.  The
administration moved after the governor of Texas, Rick Perry,
brushed aside appeals from diplomats, top judges, senior milit