Police on Saturday foiled an attempt by Army aspirants to block Jammu-Pathankot highway in Kathua district of Jammu and Kashmir, where youth Congress activists also staged a protest in the winter capital demanding immediate rollback of the new “Agnipath’ scheme.  A group of youth, who have already cleared physical and medical tests and were waiting for their written examination to join the Army over the past couple of years, staged a demonstration against the new recruitment policy at Chadwal in Kathua district, officials said.