There are ways to assess security and there are ways to prosecute a war. This is most definitely not one of them. For one thing the LTTE has been in the business of bombing Colombo for a long, long time. You can be pretty sure that their operatives that infiltrated during the ceasefire have damn good cover stories and a number are probably integrated in to parts of Colombo apart from the lodges. So in effect when you look at the costs of the laziness of whoever implemented this policy, they far outweigh the benefits. Sure some LTTE operatives may have been sent back but you can bet that the majority of those people were innocents. So for that price Sri Lanka has lost immeasurable respect in international eyes by violating fundamental human rights and probably not gained anything by security. Idiots reign supreme.