It appears Mexico is serious about not paying for Trump's border wall
                                
                                
                                    (Newser) -
                                    "If Mexico is unwilling to pay for the badly needed wall, then it would be better to cancel the upcoming meeting," President Trump  tweeted  early Thursday. Mexican President Enrique Peña Nieto, who reiterated Wednesday that  Mexico wouldn't be funding the wall , wasted little time in doing...