India's endo-atmospheric interceptor missile, the Advanced Air Defence (AAD) weapon will be tested in a week-long window in the first half of June, according to sources. Data from the Integrated Test Range (ITR) is still being analysed by scientists from the programme. A serious malfunction of onboard flight control systems is likely to have caused the modified Prithvi to dive out of the sky and smash into the Bay of Bengal without attaining its programmed altitude before curving back for an interception. Scientists say they've figured out what went wrong and have corrected it. Let's hope so.