New Delhi, Mar 19 (ANI): Launching a scathing attack on Congress vice-president Rahul Gandhi for visiting the Jawaharlal Nehru University (JNU) campus, Union Telecom Minister Ravi Shankar Prasad on Saturday alleged that the former tried to justify the ‘anti-national’ sloganeering on the name of freedom of expression. The minister was addressing a press conference in the national capital. ‘Anti-national’ slogans were allegedly raised in the varsity campus on February 9 during an event conducted to commemorate the hanging of 2001 Parliament attack convict Afzal Guru.