India and Pakistan's development of nuclear weapons small enough to sit atop their missiles has not sharpened the worry among U.S. anti-terrorism experts over a "suitcase bomb."

     The two countries' weaponization programs are trying to shrink nuclear weapons down to the 1-ton range - small by missile standards but still huge by terrorism's presumed standards, experts said.

     India and Pakistan are nothing. Russia is still the most promising market for terrorists, said Fred Rustmann, a retired CIA expert on Asian terrorism now with CTC International, a Washington security firm.

     "Those countries are years away from the kind of micro-manufacturing, super-sophisticated design and highly enriched materials needed for a truly small device, said a nuclear weapons expert.