Suspected militants on Saturday issued threatening letters to cable operators and dish antenna sellers warning them to close businesses within two days or face bomb attacks. The owners of Ali Cable Network and Dish Antenna at Abaseen Electronic Market in Swat district received letters on Saturday warning them of bomb blasts if the shops were not closed within two days. Similarly, Palwasha and Swat Picture House also received threatening calls to close the cinema house to avoid bombing. Meanwhile, owners of video and CD shops protested against the local administrationÂ’s