1.   Chopra still did not know what was being excavated, or why they had stolen the most powerful thermonuclear device ever created.

2.   He said the devices tested were a fission device, a low-yield device and a thermonuclear device.

3.   In a brief statement to reporters, Vajpayee said scientist tested a fission device, a low-yield device and a thermonuclear device.

4.   No radiation was released into the atmosphere, he insisted, adding that scientists tested a fission device, a low-yield device and a thermonuclear device.

5.   One test included the detonation of a powerful thermonuclear device.

6.   The devices India tested were a fission device, a low-yield device and a thermonuclear device.

7.   It is mostly used to increase the yield of thermonuclear devices.