ISLAMABAD - The unchecked displacement of internally displaced persons in the backdrop of ongoing military operation in South Waziristan could cost our security agencies as well as common masses quite dearly due to the potential chances of the presence of militants in the garb of IDPs. Reports from Makeen, Wana, Jandola and adjoining areas of Miran Shah indicate that currently there is no system of screening or surveillance of those individuals or families leaving for safer locations. It has been witnessed that the absence of check and balance has given the militants an easy access to unhindered movement. On an average, around 1000 to 3000 IDPs are migrating to Peshawar, Mardan, Tank, and Dera Ismail Khan and other nearby cities. The number of migrants is likely to multiply in the coming days when security forces would take-up militants in dense localities of South Waziristan. We are receiving IDPs in huge numbers, whether or not these people share affiliations with militants is still uncertain, representative of an INGO working for IDPs in the region told TheNation. Another official of the United Nations admitted that IDPs received by the UN and affiliated INGOs and NGOs were coming on random basis, without being scrutinised. The influx of IDPs is at haphazard, we cannot conduct surveillance operations on our own, it is something related to Pakistani security authorities, not us, he said. The official deplored registration process of IDPs and termed it deficient. The IDPs are registered by the time they reach their particular destinations, which is too late, the 'harmful guys can escape to other places with ease without being checked. This process is extremely deficient. There should be a well-monitored registration centre where all the IDPs are to be screened before they move to any place, proper screening could purge the IDPs from malicious elements, he added. It merits recalling here that when operation 'Raah-e-Raast was launched by the security forces in May this year, TheNation had pointed out that the entry and exit points of Malakand Division, Lower Dir, Buner and Swat were not being properly monitored, and as a result, supporters of Taliban, in the garb of IDPs, infiltrated among common people. In the absence of a well-organised monitoring mechanism, the same thing is happening again in South Waziristan, Wana, Tank and the related belt could backlash severe security lapses. The security officials need to ascertain whether the dispersed supporters of militants have any links with the current spell of terrorism in the country that has claimed several precious lives and unnerved the peace of mind of the people.