21.   Paleontologists in Utah have been using a homemade device to locate fossils buried in solid rock, including two never-before-seen dinosaurs.

22.   Paleontologists use a homemade device to locate fossils.

23.   Police officials, speaking on condition of anonymity, said the homemade device was concealed inside a package.

24.   Police said it was not immediately clear whether the blasts were caused by explosives or homemade devices using small gas canisters.

25.   Police recovered the remains of five exploded pipebombs as well as three more homemade explosive devices that failed to detonate Monday.

26.   Police suspect it was a homemade device.

27.   Police ruled out accidental causes and said the blast in the heavily traveled station was likely caused by a fragmentation grenade or a homemade explosive device.

28.   Police said the same type of homemade explosive device was used in both attacks.

29.   Police say thousands of people could have been killed Tuesday night had the chemicals in the homemade devices combined to form highly poisonous cyanide gas.

30.   The bomb was a homemade device consisting of TNT, a detonator and a fuse.