"Dangerous criminals, including murderers, are being released every day because their home countries will not cooperate in taking them back," Republican Senator Senate Chuck Grassley said in a letter to the Homeland Security Secretary Jeh Johnson.
In fiscal year 2015 alone, 2,166 individuals were released in the US because of this decision and the non-cooperation from recalcitrant countries; more than 6,100 were released in the preceding two years, Grassley, who is the Senate Judiciary Committee Chairman said.
In addition, US Immigrations and Customs Enforcement is monitoring another 62 nations where cooperation is strained, but which are not yet deemed recalcitrant.
In the letter to Johnson, Grassley reminded him that, Congress addressed this problem when it enacted section 243(d) of the Immigration and Nationality Act.
"Under section 243(d), the Secretary of State is required to discontinue granting immigrant or non-immigrant visas to a country upon receiving notice from you that the country has denied or is unreasonably delaying accepting a citizen, subject, national or resident of that country," he said.