'Pakistan is more obliged to improve the security of its nukes'

'Its internal security concerns are greater,' says security expert Michael Krepon.

Just like India, Pakistan wants sea-based missiles, says Michael Krepon of the Stimson Center, a Washington-based think-tank.

How serious is the threat of Pakistan advancing toward sea-based missile capability?

India is intent on having a sea-based nuclear deterrent. Pakistan is, too.

Pakistan says it separates warheads from launchers. Do you agree?

Separation will be very hard at sea. Warheads will be close by at all times.

The international community has expressed fears of Pakistan's nuclear weapons falling into the hands of terrorists. Has Pakistan ensured that this does not happen?

Every country with nuclear weapons is obliged to constantly improve security. Pakistan is more obliged than most because its internal security concerns are greater.

There is a great deal of instability in Pakistan today. Do you see another military coup?

No. As long as Pakistan's military already controls the portfolios that matter most to it, why would it want the headache of running the government?