The Central 14-Party Alliance led by Awami League on Friday said it decided to form countrywide one-hour human-chain on June 19 from 3pm to 4pm simultaneously against recent clandestine attacks targeting secular, liberal and minority people. "BNP Chairperson Begum Khaleda Zia is doing everything to protect those involved with the secret killings and clandestine attacks . . .the heinous…